map

Updates values based on map function. 🏃 📼 📦 🌔 📒

Alternatives: map, map$.
Similar: map, reduce, filter, filterAt, reject, rejectAt.

map.map(x, fm);
// x:  a map
// fm: map function (v, k, x)

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

var x = new Map([["a", 1], ["b", 2], ["c", 3], ["d", 4]]);
map.map(x, v => v * 2);
// Map(4) { "a" => 2, "b" => 4, "c" => 6, "d" => 8 }

references

• Data.List.map: Haskell
• Array.prototype.map: MDN web docs
• array_map: PHP
• Array.map: sugarjs
• filter-collection: @dimd13