Argthtjtr

first, I'm sorry about my bad English

I have an important website and a huge number access daily. So I don't want my rivals copy my javascript function by DevTool

I've written a script to prevent all keydown combo: CTRL + C V U A, CTRL + SHIFT + I . I know I can't prevent if they do download my site and view it by editor. I just wanna preven if they open DevTool.

My script can't prevent if my rivals open devtool before they access my website. So my question is: Is there anyway to redirect my website to another if Devtool is open, can I handle this?

Please help me. Thanks you!!. And sorry about my bad English again!

UPDATE1
I used script prevent Devtool:

(function () {

        'use strict';

        var devtools = {

            open: false,

            orientation: null

        };

        var threshold = 160;

        var emitEvent = function (state, orientation) {

            window.dispatchEvent(new CustomEvent('devtoolschange', {

                detail: {

                    open: state,

                    orientation: orientation

                }

            }));

        };



        setInterval(function () {

            var widthThreshold = window.outerWidth - window.innerWidth > threshold;

            var heightThreshold = window.outerHeight - window.innerHeight > threshold;

            var orientation = widthThreshold ? 'vertical' : 'horizontal';



            if (!(heightThreshold && widthThreshold) &&

                ((window.Firebug && window.Firebug.chrome && window.Firebug.chrome.isInitialized) || widthThreshold || heightThreshold)) {

                if (!devtools.open || devtools.orientation !== orientation) {

                    emitEvent(true, orientation);

                }



                devtools.open = true;

                devtools.orientation = orientation;

            } else {

                if (devtools.open) {

                    emitEvent(false, null);

                }



                devtools.open = false;

                devtools.orientation = null;

            }

        }, 500);



        if (typeof module !== 'undefined' && module.exports) {

            module.exports = devtools;

        } else {

            window.devtools = devtools;

        }

    })();



    // check if it's open

    $(document).ready(function () {

        console.log('is DevTools open?', window.devtools.open);

        // check it's orientation, null if not open

        console.log('and DevTools orientation?', window.devtools.orientation);



        // get notified when it's opened/closed or orientation changes

        window.addEventListener('devtoolschange', function (e) {

            console.log('is DevTools open?', e.detail.open);

            console.log('and DevTools orientation?', e.detail.orientation);

        });

    })

But Unlucky for me, if I open devtool before I paste my website link and Enter to access, It return False: