findAll - nodef/extra-map GitHub Wiki

Find values passing a test.

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

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

const map = require('extra-map');

var x = new Map(['a', 1], ['b', 2], ['c', 3], ['d', 4](/nodef/extra-map/wiki/'a',-1],-['b',-2],-['c',-3],-['d',-4));
map.findAll(x, v => v % 2 === 0);
// → [ 2, 4 ]                    ^                   ^

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

References