map$

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Subhajit Sahu edited this page Dec 8, 2022 · 12 revisions

Transform values of an object.

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

function map$(x, fm)
// x:  an object (updated)
// fm: map function (v, k, x)

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

var x = {a: 1, b: 2, c: 3, d: 4};
object.map$(x, v => v * 2);
// → { a: 2, b: 4, c: 6, d: 8 }

x;
// → { a: 2, b: 4, c: 6, d: 8 }

References