findAll

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Subhajit Sahu edited this page Dec 28, 2022 · 14 revisions

Find values passing a test.

Alternatives: find, findAll.
Similar: find, search, searchValue.

function findAll(x, ft)
// x:  lists
// ft: test function (v, k, x)

const xlists = require('extra-lists');

var x = [['a', 'b', 'c', 'd'], [1, 2, 3,  4]];
[...xlists.findAll(x, v => v % 2 === 0)];
// → [ 2, 4 ]                      ^                   ^

[...xlists.findAll(x, v => v % 8 === 0)];
// → []

References