searchAll

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

Find keys of entries passing a test.

Alternatives: search, searchAll.
Similar: search, searchValue.

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

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

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

[...xlists.searchAll(x, v => Math.abs(v) === 2)];
// → [ 'b', 'd' ]      ^                   ^

References