@extra-array/keys

Lists all indices. :package: :smileycat: :running: :vhs: :moon: :scroll: :newspaper: :bluebook:

Similar: keys, values, entries.

This is part of package extra-array.

array.keys(x);
// x: an array

const array = require("extra-array");

var x = [1, 2, 3];
[...array.keys(x)];
// [ 0, 1, 2 ]

References

• Array.prototype.keys: MDN web docs