@extra-object/scan-while

Finds key of first entry not passing a test. [:running:] [:vhs:] [:package:] [:moon:] [:ledger:] > Alternatives: [scanWhile], [scanUntil]. > This is part of package extra-object.

Usage no npm install needed!

<script type="module">
  import extraObjectScanWhile from 'https://cdn.skypack.dev/@extra-object/scan-while';
</script>

README

Finds key of first entry not passing a test. :running: :vhs: :package: :moon: :ledger:

Alternatives: scanWhile, scanUntil.
This is part of package extra-object.

object.scanWhile(x, ft);
// x:  an object
// ft: test function (v, k, x)

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

var x = {a: 1, b: 2, c: 3, d: 2};
object.scanWhile(x, v => v % 2 !== 0);
// 'b'         ^

object.scanWhile(x, v => v % 8 !== 0);
// null

references