@extra-iterable/unshift.min

Adds values to the start. :package: :smileycat: :running: :vhs: :moon: :scroll: :newspaper: :bluebook:

Similar: push, pop, shift, unshift.

This is part of package extra-iterable.

This is browserified, minified version of @extra-iterable/unshift.
It is exported as global variable iterableunshift.
CDN: unpkg, jsDelivr.

iterable.unshift(x, ...vs);
// x:  an iterable
// vs: values to add

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

var x = [3, 4];
[...iterable.unshift(x, 2)];
// [ 2, 3, 4 ]

[...iterable.unshift(x, 1, 2)];
// [ 1, 2, 3, 4 ]

References

• Array.prototype.unshift: MDN web docs
• arrayunshift: PHP
• Array.unshift: Ruby
• immutable-iterable-prototype: @azu