isEmpty

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

Checks if map is empty. 🏃 [:vhs:] 📦 🌔 📒

Similar: size, isEmpty.

map.isEmpty(x);
// x: a map

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

var x = new Map([['a', 1], ['b', 2], ['c', 3]]);
map.isEmpty(x);
// false

var x = new Map();
map.isEmpty(x);
// true

references