filter

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Subhajit Sahu edited this page Feb 3, 2021 · 27 revisions

Keeps the values which pass a test. 🏃 📼 📦 🌔 📒

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

iterable.filter(x, ft);
// x:  an iterable
// ft: test function (v, i, x)

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

var x = [1, 2, 3, 4, 5];
[...iterable.filter(x, v => v % 2 === 1)];
// [ 1, 3, 5 ]

[...iterable.filter(x, v => v % 2 === 0)];
// [ 2, 4 ]

references