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* Update BinaryCountSetBits.js * Use `let` instead of `var` --------- Co-authored-by: Lars Müller <34514239+appgurueu@users.noreply.github.com>
27 lines
666 B
JavaScript
27 lines
666 B
JavaScript
/*
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author: vivek9patel
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license: GPL-3.0 or later
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This script will find number of 1's
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in binary representation of given number
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*/
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function BinaryCountSetBits(a) {
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'use strict'
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// 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
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if (!Number.isInteger(a)) throw new TypeError('Argument not an Integer')
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let count = 0
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while (a) {
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a &= (a - 1)
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count++
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}
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return count
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}
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export { BinaryCountSetBits }
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