reject$

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Subhajit Sahu edited this page Jun 12, 2020 · 14 revisions

Discards entries which pass a test. 🏃 📼 📦 🌔 📒

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

map.reject$(x, fn, [ths]);
// x:   a map (updated)
// fn:  test function (v, k, x)
// ths: this argument
// --> x

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

var x = new Map([['a', 1], ['b', 2], ['c', 3], ['d', 4], ['e', 5]]);
map.reject$(x, v => v % 2 === 1);
// Map(2) { 'b' => 2, 'd' => 4 }

x;
// Map(2) { 'b' => 2, 'd' => 4 }

var x = new Map([['a', 1], ['b', 2], ['c', 3], ['d', 4], ['e', 5]]);
map.reject$(x, v => v % 2 === 0);
// Map(3) { 'a' => 1, 'c' => 3, 'e' => 5 }

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