filterAt$

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

Get object with given keys.

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

function filterAt$(x, ks)
// x:  an object (updated)
// ks: keys

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

var x = {a: 1, b: 2, c: 3, d: 4, e: 5};
object.filterAt$(x, ['a', 'c', 'e']);
// → { a: 1, c: 3, e: 5 }

x;
// → { a: 1, c: 3, e: 5 }

var x = {a: 1, b: 2, c: 3, d: 4, e: 5};
object.filterAt$(x, ['b', 'd']);
// → { b: 2, d: 4 }

References