Select items in a list with keyup JavaScript, JQuery





.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty{ height:90px;width:728px;box-sizing:border-box;
}







-1















I'm trying to make a list to select items but the behavior when I use up or down arrow is not so good. When I use up or down arrows it scrolls the <div> and also select and focus on <li> tag but the scrolls moves first so it seems to be kind of rare.



How can I achieve the correct behavior using up and down key?






<!DOCTYPE html>

<html lang="en">

<head>

    <meta charset="UTF-8">

    <title>Document</title>

    <script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>



    <style>

        ul {

        width: 400px;

        height: 200px;

        background: aqua;

        overflow: scroll;           

        }

    </style>



    <script>



        $(function(){

            num = ""



            $("body").keyup(function(e){



                if (e.keyCode == 40){



                    $("ul").find('li:eq('+num+')').focus().css('color', 'red');

                    console.log(num ++)



                }



                if (e.keyCode == 38){



                    $("ul").find('li:eq('+num+')').focus().css('color', 'blue');

                    console.log(num --)



                }   





            })



        })



    </script>

</head>

<body>



<ul>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>







</ul>





</body>

</html>





I really appreciate your help guys.






javascript jquery







share|improve this question

























  • Please clarify what you think the problem is and what the desired behavior should be.

    – Scott Marcus
    Nov 23 '18 at 20:54


















-1















I'm trying to make a list to select items but the behavior when I use up or down arrow is not so good. When I use up or down arrows it scrolls the <div> and also select and focus on <li> tag but the scrolls moves first so it seems to be kind of rare.



How can I achieve the correct behavior using up and down key?






<!DOCTYPE html>

<html lang="en">

<head>

    <meta charset="UTF-8">

    <title>Document</title>

    <script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>



    <style>

        ul {

        width: 400px;

        height: 200px;

        background: aqua;

        overflow: scroll;           

        }

    </style>



    <script>



        $(function(){

            num = ""



            $("body").keyup(function(e){



                if (e.keyCode == 40){



                    $("ul").find('li:eq('+num+')').focus().css('color', 'red');

                    console.log(num ++)



                }



                if (e.keyCode == 38){



                    $("ul").find('li:eq('+num+')').focus().css('color', 'blue');

                    console.log(num --)



                }   





            })



        })



    </script>

</head>

<body>



<ul>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>







</ul>





</body>

</html>





I really appreciate your help guys.






javascript jquery







share|improve this question

























  • Please clarify what you think the problem is and what the desired behavior should be.

    – Scott Marcus
    Nov 23 '18 at 20:54














-1












-1








-1








I'm trying to make a list to select items but the behavior when I use up or down arrow is not so good. When I use up or down arrows it scrolls the <div> and also select and focus on <li> tag but the scrolls moves first so it seems to be kind of rare.



How can I achieve the correct behavior using up and down key?






<!DOCTYPE html>

<html lang="en">

<head>

    <meta charset="UTF-8">

    <title>Document</title>

    <script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>



    <style>

        ul {

        width: 400px;

        height: 200px;

        background: aqua;

        overflow: scroll;           

        }

    </style>



    <script>



        $(function(){

            num = ""



            $("body").keyup(function(e){



                if (e.keyCode == 40){



                    $("ul").find('li:eq('+num+')').focus().css('color', 'red');

                    console.log(num ++)



                }



                if (e.keyCode == 38){



                    $("ul").find('li:eq('+num+')').focus().css('color', 'blue');

                    console.log(num --)



                }   





            })



        })



    </script>

</head>

<body>



<ul>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>







</ul>





</body>

</html>





I really appreciate your help guys.






javascript jquery







share|improve this question
















I'm trying to make a list to select items but the behavior when I use up or down arrow is not so good. When I use up or down arrows it scrolls the <div> and also select and focus on <li> tag but the scrolls moves first so it seems to be kind of rare.



How can I achieve the correct behavior using up and down key?






<!DOCTYPE html>

<html lang="en">

<head>

    <meta charset="UTF-8">

    <title>Document</title>

    <script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>



    <style>

        ul {

        width: 400px;

        height: 200px;

        background: aqua;

        overflow: scroll;           

        }

    </style>



    <script>



        $(function(){

            num = ""



            $("body").keyup(function(e){



                if (e.keyCode == 40){



                    $("ul").find('li:eq('+num+')').focus().css('color', 'red');

                    console.log(num ++)



                }



                if (e.keyCode == 38){



                    $("ul").find('li:eq('+num+')').focus().css('color', 'blue');

                    console.log(num --)



                }   





            })



        })



    </script>

</head>

<body>



<ul>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>







</ul>





</body>

</html>





I really appreciate your help guys.






<!DOCTYPE html>

<html lang="en">

<head>

    <meta charset="UTF-8">

    <title>Document</title>

    <script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>



    <style>

        ul {

        width: 400px;

        height: 200px;

        background: aqua;

        overflow: scroll;           

        }

    </style>



    <script>



        $(function(){

            num = ""



            $("body").keyup(function(e){



                if (e.keyCode == 40){



                    $("ul").find('li:eq('+num+')').focus().css('color', 'red');

                    console.log(num ++)



                }



                if (e.keyCode == 38){



                    $("ul").find('li:eq('+num+')').focus().css('color', 'blue');

                    console.log(num --)



                }   





            })



        })



    </script>

</head>

<body>



<ul>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>







</ul>





</body>

</html>





<!DOCTYPE html>

<html lang="en">

<head>

    <meta charset="UTF-8">

    <title>Document</title>

    <script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>



    <style>

        ul {

        width: 400px;

        height: 200px;

        background: aqua;

        overflow: scroll;           

        }

    </style>



    <script>



        $(function(){

            num = ""



            $("body").keyup(function(e){



                if (e.keyCode == 40){



                    $("ul").find('li:eq('+num+')').focus().css('color', 'red');

                    console.log(num ++)



                }



                if (e.keyCode == 38){



                    $("ul").find('li:eq('+num+')').focus().css('color', 'blue');

                    console.log(num --)



                }   





            })



        })



    </script>

</head>

<body>



<ul>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>







</ul>





</body>

</html>





javascript jquery




javascript jquery






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 23 '18 at 20:55









Scott Marcus

41k52141




41k52141










asked Nov 23 '18 at 20:41









El arquitectoEl arquitecto

102110




102110













  • Please clarify what you think the problem is and what the desired behavior should be.

    – Scott Marcus
    Nov 23 '18 at 20:54



















  • Please clarify what you think the problem is and what the desired behavior should be.

    – Scott Marcus
    Nov 23 '18 at 20:54

















Please clarify what you think the problem is and what the desired behavior should be.

– Scott Marcus
Nov 23 '18 at 20:54





Please clarify what you think the problem is and what the desired behavior should be.

– Scott Marcus
Nov 23 '18 at 20:54












1 Answer
1






active

oldest

votes


















0














I do not understand your problem exactly, but I will try to help you.
For this solution that I have prepared for you.
Let me know if you did not mean it!






$(function() {

    var num = 0;



    $("body").keyup(function(e) {



        if (e.keyCode == 40) {

          var elementIndex = $("li:focus").index();

          $("ul > li").eq(elementIndex).css('color', 'red');

          console.log("Last focused element index: " + elementIndex + " has change to: " + Math.floor(elementIndex + 1));

          $("ul > li").eq(elementIndex + 1).focus();

        }



        if (e.keyCode == 38) {

          var elementIndex = $("li:focus").index();

          $("ul > li").eq(elementIndex).css('color', 'blue');

          if(elementIndex == 0) return;

          console.log("Last focused element index: " + elementIndex + " has change to: " + Math.floor(elementIndex - 1));

          $("ul > li").eq(elementIndex - 1).focus();

        }





    })



})

ul {

        width: 400px;

        height: 200px;

        background: aqua;

        overflow: scroll;           

        }

<!DOCTYPE html>

<html lang="en">

<head>

    <meta charset="UTF-8">

    <title>Document</title>

    <script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>



</head>

<body>



<ul>

    <li tabindex="0">Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>







</ul>





</body>

</html>








share|improve this answer
























  • I really apreciate your help Maciej Wojtasik, no, what I mean just look the behavior of the scroll bar when you type up or down, look this site kwfinder.com and try to chose a language, just move the up an down key arrows and see how the scroll bar moves, and se my example and your example, thats the problem and I do not know how to achieve this.

    – El arquitecto
    Nov 23 '18 at 22:31











  • You were right ! Thank you !

    – El arquitecto
    Nov 24 '18 at 2:10











  • @Elarquitecto I also found an interesting solution on this page: w3.org/TR/2017/NOTE-wai-aria-practices-1.1-20171214/examples/… Maybe it will be useful to you!

    – Maciej Wojtasik
    Nov 24 '18 at 15:11












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1 Answer
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active

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active

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0














I do not understand your problem exactly, but I will try to help you.
For this solution that I have prepared for you.
Let me know if you did not mean it!






$(function() {

    var num = 0;



    $("body").keyup(function(e) {



        if (e.keyCode == 40) {

          var elementIndex = $("li:focus").index();

          $("ul > li").eq(elementIndex).css('color', 'red');

          console.log("Last focused element index: " + elementIndex + " has change to: " + Math.floor(elementIndex + 1));

          $("ul > li").eq(elementIndex + 1).focus();

        }



        if (e.keyCode == 38) {

          var elementIndex = $("li:focus").index();

          $("ul > li").eq(elementIndex).css('color', 'blue');

          if(elementIndex == 0) return;

          console.log("Last focused element index: " + elementIndex + " has change to: " + Math.floor(elementIndex - 1));

          $("ul > li").eq(elementIndex - 1).focus();

        }





    })



})

ul {

        width: 400px;

        height: 200px;

        background: aqua;

        overflow: scroll;           

        }

<!DOCTYPE html>

<html lang="en">

<head>

    <meta charset="UTF-8">

    <title>Document</title>

    <script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>



</head>

<body>



<ul>

    <li tabindex="0">Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>







</ul>





</body>

</html>








share|improve this answer
























  • I really apreciate your help Maciej Wojtasik, no, what I mean just look the behavior of the scroll bar when you type up or down, look this site kwfinder.com and try to chose a language, just move the up an down key arrows and see how the scroll bar moves, and se my example and your example, thats the problem and I do not know how to achieve this.

    – El arquitecto
    Nov 23 '18 at 22:31











  • You were right ! Thank you !

    – El arquitecto
    Nov 24 '18 at 2:10











  • @Elarquitecto I also found an interesting solution on this page: w3.org/TR/2017/NOTE-wai-aria-practices-1.1-20171214/examples/… Maybe it will be useful to you!

    – Maciej Wojtasik
    Nov 24 '18 at 15:11
















0














I do not understand your problem exactly, but I will try to help you.
For this solution that I have prepared for you.
Let me know if you did not mean it!






$(function() {

    var num = 0;



    $("body").keyup(function(e) {



        if (e.keyCode == 40) {

          var elementIndex = $("li:focus").index();

          $("ul > li").eq(elementIndex).css('color', 'red');

          console.log("Last focused element index: " + elementIndex + " has change to: " + Math.floor(elementIndex + 1));

          $("ul > li").eq(elementIndex + 1).focus();

        }



        if (e.keyCode == 38) {

          var elementIndex = $("li:focus").index();

          $("ul > li").eq(elementIndex).css('color', 'blue');

          if(elementIndex == 0) return;

          console.log("Last focused element index: " + elementIndex + " has change to: " + Math.floor(elementIndex - 1));

          $("ul > li").eq(elementIndex - 1).focus();

        }





    })



})

ul {

        width: 400px;

        height: 200px;

        background: aqua;

        overflow: scroll;           

        }

<!DOCTYPE html>

<html lang="en">

<head>

    <meta charset="UTF-8">

    <title>Document</title>

    <script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>



</head>

<body>



<ul>

    <li tabindex="0">Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>







</ul>





</body>

</html>








share|improve this answer
























  • I really apreciate your help Maciej Wojtasik, no, what I mean just look the behavior of the scroll bar when you type up or down, look this site kwfinder.com and try to chose a language, just move the up an down key arrows and see how the scroll bar moves, and se my example and your example, thats the problem and I do not know how to achieve this.

    – El arquitecto
    Nov 23 '18 at 22:31











  • You were right ! Thank you !

    – El arquitecto
    Nov 24 '18 at 2:10











  • @Elarquitecto I also found an interesting solution on this page: w3.org/TR/2017/NOTE-wai-aria-practices-1.1-20171214/examples/… Maybe it will be useful to you!

    – Maciej Wojtasik
    Nov 24 '18 at 15:11














0












0








0







I do not understand your problem exactly, but I will try to help you.
For this solution that I have prepared for you.
Let me know if you did not mean it!






$(function() {

    var num = 0;



    $("body").keyup(function(e) {



        if (e.keyCode == 40) {

          var elementIndex = $("li:focus").index();

          $("ul > li").eq(elementIndex).css('color', 'red');

          console.log("Last focused element index: " + elementIndex + " has change to: " + Math.floor(elementIndex + 1));

          $("ul > li").eq(elementIndex + 1).focus();

        }



        if (e.keyCode == 38) {

          var elementIndex = $("li:focus").index();

          $("ul > li").eq(elementIndex).css('color', 'blue');

          if(elementIndex == 0) return;

          console.log("Last focused element index: " + elementIndex + " has change to: " + Math.floor(elementIndex - 1));

          $("ul > li").eq(elementIndex - 1).focus();

        }





    })



})

ul {

        width: 400px;

        height: 200px;

        background: aqua;

        overflow: scroll;           

        }

<!DOCTYPE html>

<html lang="en">

<head>

    <meta charset="UTF-8">

    <title>Document</title>

    <script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>



</head>

<body>



<ul>

    <li tabindex="0">Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>







</ul>





</body>

</html>








share|improve this answer













I do not understand your problem exactly, but I will try to help you.
For this solution that I have prepared for you.
Let me know if you did not mean it!






$(function() {

    var num = 0;



    $("body").keyup(function(e) {



        if (e.keyCode == 40) {

          var elementIndex = $("li:focus").index();

          $("ul > li").eq(elementIndex).css('color', 'red');

          console.log("Last focused element index: " + elementIndex + " has change to: " + Math.floor(elementIndex + 1));

          $("ul > li").eq(elementIndex + 1).focus();

        }



        if (e.keyCode == 38) {

          var elementIndex = $("li:focus").index();

          $("ul > li").eq(elementIndex).css('color', 'blue');

          if(elementIndex == 0) return;

          console.log("Last focused element index: " + elementIndex + " has change to: " + Math.floor(elementIndex - 1));

          $("ul > li").eq(elementIndex - 1).focus();

        }





    })



})

ul {

        width: 400px;

        height: 200px;

        background: aqua;

        overflow: scroll;           

        }

<!DOCTYPE html>

<html lang="en">

<head>

    <meta charset="UTF-8">

    <title>Document</title>

    <script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>



</head>

<body>



<ul>

    <li tabindex="0">Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>







</ul>





</body>

</html>








$(function() {

    var num = 0;



    $("body").keyup(function(e) {



        if (e.keyCode == 40) {

          var elementIndex = $("li:focus").index();

          $("ul > li").eq(elementIndex).css('color', 'red');

          console.log("Last focused element index: " + elementIndex + " has change to: " + Math.floor(elementIndex + 1));

          $("ul > li").eq(elementIndex + 1).focus();

        }



        if (e.keyCode == 38) {

          var elementIndex = $("li:focus").index();

          $("ul > li").eq(elementIndex).css('color', 'blue');

          if(elementIndex == 0) return;

          console.log("Last focused element index: " + elementIndex + " has change to: " + Math.floor(elementIndex - 1));

          $("ul > li").eq(elementIndex - 1).focus();

        }





    })



})

ul {

        width: 400px;

        height: 200px;

        background: aqua;

        overflow: scroll;           

        }

<!DOCTYPE html>

<html lang="en">

<head>

    <meta charset="UTF-8">

    <title>Document</title>

    <script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>



</head>

<body>



<ul>

    <li tabindex="0">Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>







</ul>





</body>

</html>





$(function() {

    var num = 0;



    $("body").keyup(function(e) {



        if (e.keyCode == 40) {

          var elementIndex = $("li:focus").index();

          $("ul > li").eq(elementIndex).css('color', 'red');

          console.log("Last focused element index: " + elementIndex + " has change to: " + Math.floor(elementIndex + 1));

          $("ul > li").eq(elementIndex + 1).focus();

        }



        if (e.keyCode == 38) {

          var elementIndex = $("li:focus").index();

          $("ul > li").eq(elementIndex).css('color', 'blue');

          if(elementIndex == 0) return;

          console.log("Last focused element index: " + elementIndex + " has change to: " + Math.floor(elementIndex - 1));

          $("ul > li").eq(elementIndex - 1).focus();

        }





    })



})

ul {

        width: 400px;

        height: 200px;

        background: aqua;

        overflow: scroll;           

        }

<!DOCTYPE html>

<html lang="en">

<head>

    <meta charset="UTF-8">

    <title>Document</title>

    <script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>



</head>

<body>



<ul>

    <li tabindex="0">Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>

    <li tabindex="0" >Palabra Palabra Palabra Palabra</li>







</ul>





</body>

</html>






share|improve this answer












share|improve this answer



share|improve this answer










answered Nov 23 '18 at 21:19









Maciej WojtasikMaciej Wojtasik

4615




4615













  • I really apreciate your help Maciej Wojtasik, no, what I mean just look the behavior of the scroll bar when you type up or down, look this site kwfinder.com and try to chose a language, just move the up an down key arrows and see how the scroll bar moves, and se my example and your example, thats the problem and I do not know how to achieve this.

    – El arquitecto
    Nov 23 '18 at 22:31











  • You were right ! Thank you !

    – El arquitecto
    Nov 24 '18 at 2:10











  • @Elarquitecto I also found an interesting solution on this page: w3.org/TR/2017/NOTE-wai-aria-practices-1.1-20171214/examples/… Maybe it will be useful to you!

    – Maciej Wojtasik
    Nov 24 '18 at 15:11



















  • I really apreciate your help Maciej Wojtasik, no, what I mean just look the behavior of the scroll bar when you type up or down, look this site kwfinder.com and try to chose a language, just move the up an down key arrows and see how the scroll bar moves, and se my example and your example, thats the problem and I do not know how to achieve this.

    – El arquitecto
    Nov 23 '18 at 22:31











  • You were right ! Thank you !

    – El arquitecto
    Nov 24 '18 at 2:10











  • @Elarquitecto I also found an interesting solution on this page: w3.org/TR/2017/NOTE-wai-aria-practices-1.1-20171214/examples/… Maybe it will be useful to you!

    – Maciej Wojtasik
    Nov 24 '18 at 15:11

















I really apreciate your help Maciej Wojtasik, no, what I mean just look the behavior of the scroll bar when you type up or down, look this site kwfinder.com and try to chose a language, just move the up an down key arrows and see how the scroll bar moves, and se my example and your example, thats the problem and I do not know how to achieve this.

– El arquitecto
Nov 23 '18 at 22:31





I really apreciate your help Maciej Wojtasik, no, what I mean just look the behavior of the scroll bar when you type up or down, look this site kwfinder.com and try to chose a language, just move the up an down key arrows and see how the scroll bar moves, and se my example and your example, thats the problem and I do not know how to achieve this.

– El arquitecto
Nov 23 '18 at 22:31













You were right ! Thank you !

– El arquitecto
Nov 24 '18 at 2:10





You were right ! Thank you !

– El arquitecto
Nov 24 '18 at 2:10













@Elarquitecto I also found an interesting solution on this page: w3.org/TR/2017/NOTE-wai-aria-practices-1.1-20171214/examples/… Maybe it will be useful to you!

– Maciej Wojtasik
Nov 24 '18 at 15:11





@Elarquitecto I also found an interesting solution on this page: w3.org/TR/2017/NOTE-wai-aria-practices-1.1-20171214/examples/… Maybe it will be useful to you!

– Maciej Wojtasik
Nov 24 '18 at 15:11




















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Alcedinidae

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Alcedinidae Martin-pêcheur à dos bleu ( Alcedo azurea ) Classification (COI) Règne Animalia Embranchement Chordata Sous-embr. Vertebrata Classe Aves Ordre Coraciiformes Famille Alcedinidae Rafinesque, 1815 Les Alcédinidés ou Alcedinidae forment une famille d'oiseaux plus connus sous les noms de martins-pêcheurs et martins-chasseurs. Sommaire 1 Description 2 Répartition et habitat 3 Systématique 3.1 Liste alphabétique des genres 3.2 Liste des espèces 4 Chez les Anciens : l'alcyon 4.1 Étymologie (Littré) 4.2 Oiseau « fabuleux » ? 5 Notes 6 Articles connexes 7 Liens externes 7.1 Bibliographie Description | Ce sont des oiseaux compacts de taille petite à moyenne (10 à 46 cm), au bec droit et long, en forme de poignard. Leurs pattes sont courtes, et ils portent un plumage aux couleurs vives. Répartition et habitat | Cosmopolites, ils fréquentent surtout
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Can an atomic nucleus contain both particles and antiparticles? [duplicate]

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9 $begingroup$ This question already has an answer here: What happens if we put together a proton and an antineutron? 2 answers Is it theoretically possible to make a "deuterium" atom containing a proton and an antineutron in its nucleus? Would the strong nuclear force cause attraction between a proton and an antineutron? Would such a nucleus be stable, or would the proton somehow annihilate the antineutron when close enough? nuclear-physics antimatter share | cite | improve this question asked yesterday
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