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319 BJavaScriptView Raw
1var $ = require('../internals/export');
2
3var floor = Math.floor;
4var log = Math.log;
5var LOG2E = Math.LOG2E;
6
7// `Math.clz32` method
8// https://tc39.github.io/ecma262/#sec-math.clz32
9$({ target: 'Math', stat: true }, {
10 clz32: function clz32(x) {
11 return (x >>>= 0) ? 31 - floor(log(x + 0.5) * LOG2E) : 32;
12 }
13});