LeetCode: Reverse Bits Solution

Approach

Convert n to binary string

Make the string 32 in length by padding with 0

Reverse the string

Convert back to decimal

Implementation

1var reverseBits = function (n) {
2  return parseInt(
3    n.toString(2).padStart(32, "0").split("").reverse().join(""),
4    2
5  )
6}

References

Original problem