isEmpty

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Subhajit Sahu edited this page Feb 3, 2021 · 12 revisions

Checks if map is empty. 🏃 📼 📦 🌔 📒

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