filter

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Subhajit Sahu edited this page Feb 2, 2021 · 25 revisions

Keeps values which pass a test. 📦 😺 🏃 📼 🌔 📜 📰 📘

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

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

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

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

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

References