Files
JavaScript/Bit-Manipulation/BinaryCountSetBits.js
Roland Hummel 86d333ee94 feat: Test running overhaul, switch to Prettier & reformat everything (#1407)
* chore: Switch to Node 20 + Vitest

* chore: migrate to vitest mock functions

* chore: code style (switch to prettier)

* test: re-enable long-running test

Seems the switch to Node 20 and Vitest has vastly improved the code's and / or the test's runtime!

see #1193

* chore: code style

* chore: fix failing tests

* Updated Documentation in README.md

* Update contribution guidelines to state usage of Prettier

* fix: set prettier printWidth back to 80

* chore: apply updated code style automatically

* fix: set prettier line endings to lf again

* chore: apply updated code style automatically

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Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
Co-authored-by: Lars Müller <34514239+appgurueu@users.noreply.github.com>
2023-10-04 02:38:19 +05:30

22 lines
734 B
JavaScript

/*
author: vivek9patel
license: GPL-3.0 or later
This script will find number of 1's
in binary representation of given number
*/
function BinaryCountSetBits(a) {
'use strict'
// check whether input is an integer, some non-integer number like, 21.1 have non-terminating binary expansions and hence their binary expansion will contain infinite ones, thus the handling of non-integers (including strings,objects etc. as it is meaningless) has been omitted
if (!Number.isInteger(a)) throw new TypeError('Argument not an Integer')
// convert number into binary representation and return number of set bits in binary representation
return a.toString(2).split('1').length - 1
}
export { BinaryCountSetBits }