JavaScript - Number of 0 bits in a binary representation
JavaScript Bit Manipulation: Exercise-3 with Solution
Write a JavaScript program to count number of 0 bits in binary representation of a given integer.
Test Data:
(45) -> 2
(17) -> 3
(15) -> "Parameter value is not an Integer!"
Sample Solution:
JavaScript Code:
function Binary_Count_SetBits(a)
{
// check whether input is an integer
if (!Number.isInteger(a))
{
return('Parameter value is not an Integer!')
}
return a.toString(2).split('0').length - 1
}
console.log(Binary_Count_SetBits(45))
console.log(Binary_Count_SetBits(17))
console.log(Binary_Count_SetBits("15"))
Sample Output:
2 3 Parameter value is not an Integer!
Flowchart:

Live Demo:
See the Pen javascript-bit-manipulation-exercise-2 by w3resource (@w3resource) on CodePen.
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JavaScript: Tips of the Day
Returns the symmetric difference between two arrays, after applying the provided function to each array element of both
Example:
const tips_symmetricDifference = (x, y, fn) => { const sA = new Set(x.map(v => fn(v))), sB = new Set(y.map(v => fn(v))); return [...x.filter(x => !sB.has(fn(x))), ...y.filter(x => !sA.has(fn(x)))]; }; console.log(tips_symmetricDifference([3.5, 5.5], [5.5, 7.5], Math.floor));
Output:
[3.5, 7.5]
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