set$

Set value at key.

Alternatives: set, set$.
Similar: get, set, remove.

function set$(x, k, v)
// x: a map (updated)
// k: key
// v: value

const map = require('extra-map');

var x = new Map([['a', 2], ['b', 4], ['c', 6], ['d', 8]]);
map.set$(x, 'b', 40);
// → Map(4) { 'a' => 2, 'b' => 40, 'c' => 6, 'd' => 8 }

x;
// → Map(4) { 'a' => 2, 'b' => 40, 'c' => 6, 'd' => 8 }

var x = new Map([['a', 2], ['b', 4], ['c', 6], ['d', 8]]);
map.set$(x, 'd', 80);
// → Map(4) { 'a' => 2, 'b' => 4, 'c' => 6, 'd' => 80 }

References

• List-Extra.updateAt: elm
• List.set: Java