Performance of bitwise operators in javascript

Question

One of the main ideas behind using bitwise operators in languages like C++/java/C# is that they\'re extremely fast. But I\'ve heard that in javascript they\'re very slow (ad

Answer 1

This is quite an old question, but no one seemed to answer the updated version.

The performance hit that you get with JavaScript that doesn't exist in C/C++ is the cast from floating point representation (how JavaScript strores all of its numbers) to a 32 bit integer to perform the bit manipulation and back.