keys

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Subhajit Sahu edited this page May 9, 2020 · 17 revisions

Lists all keys. 🏃 📼 📦 🌔

map.keys(x);
// x: a map
// --> ...keys

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

var x = new Map([['A', 1], ['B', 2]]);
[...map.keys(x)];
// [ 'A', 'B' ]

var x = new Map([['A', 1], ['B', 2], ['C', 3]]);
[...map.keys(x)]
// [ 'A', 'B', 'C' ]