findAll - nodef/extra-lists GitHub Wiki

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](/nodef/extra-lists/wiki/'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