Get Num Leading Zeros (32bit int)
Examples in
JavaScript
// 00000000000000000000000000000001
console.log(Math.clz32(1));
// expected output: 31
// 00000000000000000000000000000100
console.log(Math.clz32(4));
// expected output: 29
// 00000000000000000000001111101000
console.log(Math.clz32(1000));
// expected output: 22
Math.clz32(1); // 31
Math.clz32(1000); // 22
Math.clz32(); // 32
var stuff = [NaN, Infinity, -Infinity, 0, -0, null, undefined, 'foo', {}, []];
stuff.every(n => Math.clz32(n) == 32); // true
Math.clz32(true); // 31
Math.clz32(3.5); // 30