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JavaScript/Bit-Manipulation/LogTwo.js at master · TheAlgorithms/JavaScript · GitHub
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/**
* https://handwiki.org/wiki/Binary_logarithm
* Approximate log2 using only bitwise operators
*
@param
{
number
} n
*
@returns
{
number
} Log2 approximation equal to floor(log2(n))
*/
export
const
logTwo
=
(
n
)
=>
{
let
result
=
0
while
(
n
>>
1
)
{
n
>>=
1
result
++
}
return
result
}
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