map

Transform values of entries.

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

function map(x, fm)
// x:  entries
// fm: map function (v, k, x)

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

var x = [["a", 1], ["b", 2], ["c", 3], ["d", 4]];
[...entries.map(x, v => v * 2)];
// → [ [ "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