clojure sorting map values alphabetically by a keyword
1
How would I sort
{
{:name "d" :id 2}
{:name "f" :id 3}
{:name "a" :id 1}
{:name "z" :id 9}
}
Alphabetically by name? Like this:
{
{:name "a" :id 1}
{:name "d" :id 2}
{:name "f" :id 3}
{:name "z" :id 9}
}
sorting clojure functional-programming
asked Nov 22 '18 at 21:05
Kaisin LiKaisin Li
8911
add a comment |
1
How would I sort
{
{:name "d" :id 2}
{:name "f" :id 3}
{:name "a" :id 1}
{:name "z" :id 9}
}
Alphabetically by name? Like this:
{
{:name "a" :id 1}
{:name "d" :id 2}
{:name "f" :id 3}
{:name "z" :id 9}
}
sorting clojure functional-programming
asked Nov 22 '18 at 21:05
Kaisin LiKaisin Li
8911
add a comment |
1
1
1
How would I sort
{
{:name "d" :id 2}
{:name "f" :id 3}
{:name "a" :id 1}
{:name "z" :id 9}
}
Alphabetically by name? Like this:
{
{:name "a" :id 1}
{:name "d" :id 2}
{:name "f" :id 3}
{:name "z" :id 9}
}
sorting clojure functional-programming
asked Nov 22 '18 at 21:05
Kaisin LiKaisin Li
8911
How would I sort
{
{:name "d" :id 2}
{:name "f" :id 3}
{:name "a" :id 1}
{:name "z" :id 9}
}
Alphabetically by name? Like this:
{
{:name "a" :id 1}
{:name "d" :id 2}
{:name "f" :id 3}
{:name "z" :id 9}
}
sorting clojure functional-programming
sorting clojure functional-programming
asked Nov 22 '18 at 21:05
Kaisin LiKaisin Li
8911
asked Nov 22 '18 at 21:05
Kaisin LiKaisin Li
8911
asked Nov 22 '18 at 21:05
Kaisin LiKaisin Li
8911
asked Nov 22 '18 at 21:05
Kaisin LiKaisin Li
8911
asked Nov 22 '18 at 21:05
Kaisin LiKaisin Li
8911
8911
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
2
When in doubt, be sure to look at the Clojure CheatSheet.
In this case just use sort-by
(def data
[{:name "d" :id 2}
{:name "f" :id 3}
{:name "a" :id 1}
{:name "z" :id 9}])
(sort-by :name data) =>
({:name "a", :id 1}
{:name "d", :id 2}
{:name "f", :id 3}
{:name "z", :id 9})
Note that I had to fix your data to use square brackets [...]
answered Nov 22 '18 at 21:19
Alan ThompsonAlan Thompson
14.1k22533
Thanks! How would I sort this in descending order?
– Kaisin Li
Nov 22 '18 at 22:45
(sort-by :name #(compare %2 %1) data)
– exupero
Nov 22 '18 at 22:50
2
Or(sort-by :name > data)would sort in descending order
– nakiya
Nov 23 '18 at 3:06
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
2
When in doubt, be sure to look at the Clojure CheatSheet.
In this case just use sort-by
(def data
[{:name "d" :id 2}
{:name "f" :id 3}
{:name "a" :id 1}
{:name "z" :id 9}])
(sort-by :name data) =>
({:name "a", :id 1}
{:name "d", :id 2}
{:name "f", :id 3}
{:name "z", :id 9})
Note that I had to fix your data to use square brackets [...]
answered Nov 22 '18 at 21:19
Alan ThompsonAlan Thompson
14.1k22533
Thanks! How would I sort this in descending order?
– Kaisin Li
Nov 22 '18 at 22:45
(sort-by :name #(compare %2 %1) data)
– exupero
Nov 22 '18 at 22:50
2
Or(sort-by :name > data)would sort in descending order
– nakiya
Nov 23 '18 at 3:06
add a comment |
2
When in doubt, be sure to look at the Clojure CheatSheet.
In this case just use sort-by
(def data
[{:name "d" :id 2}
{:name "f" :id 3}
{:name "a" :id 1}
{:name "z" :id 9}])
(sort-by :name data) =>
({:name "a", :id 1}
{:name "d", :id 2}
{:name "f", :id 3}
{:name "z", :id 9})
Note that I had to fix your data to use square brackets [...]
answered Nov 22 '18 at 21:19
Alan ThompsonAlan Thompson
14.1k22533
Thanks! How would I sort this in descending order?
– Kaisin Li
Nov 22 '18 at 22:45
(sort-by :name #(compare %2 %1) data)
– exupero
Nov 22 '18 at 22:50
2
Or(sort-by :name > data)would sort in descending order
– nakiya
Nov 23 '18 at 3:06
add a comment |
2
2
2
When in doubt, be sure to look at the Clojure CheatSheet.
In this case just use sort-by
(def data
[{:name "d" :id 2}
{:name "f" :id 3}
{:name "a" :id 1}
{:name "z" :id 9}])
(sort-by :name data) =>
({:name "a", :id 1}
{:name "d", :id 2}
{:name "f", :id 3}
{:name "z", :id 9})
Note that I had to fix your data to use square brackets [...]
answered Nov 22 '18 at 21:19
Alan ThompsonAlan Thompson
14.1k22533
When in doubt, be sure to look at the Clojure CheatSheet.
In this case just use sort-by
(def data
[{:name "d" :id 2}
{:name "f" :id 3}
{:name "a" :id 1}
{:name "z" :id 9}])
(sort-by :name data) =>
({:name "a", :id 1}
{:name "d", :id 2}
{:name "f", :id 3}
{:name "z", :id 9})
Note that I had to fix your data to use square brackets [...]
answered Nov 22 '18 at 21:19
Alan ThompsonAlan Thompson
14.1k22533
answered Nov 22 '18 at 21:19
Alan ThompsonAlan Thompson
14.1k22533
answered Nov 22 '18 at 21:19
Alan ThompsonAlan Thompson
14.1k22533
answered Nov 22 '18 at 21:19
Alan ThompsonAlan Thompson
14.1k22533
14.1k22533
Thanks! How would I sort this in descending order?
– Kaisin Li
Nov 22 '18 at 22:45
(sort-by :name #(compare %2 %1) data)
– exupero
Nov 22 '18 at 22:50
2
Or(sort-by :name > data)would sort in descending order
– nakiya
Nov 23 '18 at 3:06
add a comment |
Thanks! How would I sort this in descending order?
– Kaisin Li
Nov 22 '18 at 22:45
(sort-by :name #(compare %2 %1) data)
– exupero
Nov 22 '18 at 22:50
2
Or(sort-by :name > data)would sort in descending order
– nakiya
Nov 23 '18 at 3:06
Thanks! How would I sort this in descending order?
– Kaisin Li
Nov 22 '18 at 22:45
Thanks! How would I sort this in descending order?
– Kaisin Li
Nov 22 '18 at 22:45
(sort-by :name #(compare %2 %1) data)– exupero
Nov 22 '18 at 22:50
(sort-by :name #(compare %2 %1) data)– exupero
Nov 22 '18 at 22:50
2
2
Or
(sort-by :name > data) would sort in descending order– nakiya
Nov 23 '18 at 3:06
Or
(sort-by :name > data) would sort in descending order– nakiya
Nov 23 '18 at 3:06
add a comment |
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