array-copywithin

Polyfill for Array.prototype.copyWithin.

Usage no npm install needed!

<script type="module">
  import arrayCopywithin from 'https://cdn.skypack.dev/array-copywithin';
</script>

Polyfill for Array.prototype.copyWithin.

Functionally:

var copyWithin = require('array-copywithin');

var array = copyWithin([1, 2, 3, 4, 5], 0, 3);

console.log(array);
// => [4, 5, 3, 4, 5]

From Array object:

require('array-copywithin/shim');

var array = [1, 2, 3, 4, 5].copyWithin(0, 3);

console.log(array);
// => [4, 5, 3, 4, 5]