charlike/templates/node_modules/es5-ext/math/log2/shim.js

Small, fast, simple and streaming project scaffolder for myself, but not only. Supports hundreds of template engines through the @JSTransformers API or if you want custom `render` function passed through options

'use strict';

var log = Math.log, LOG2E = Math.LOG2E;

module.exports = function (x) {
	if (isNaN(x)) return NaN;
	x = Number(x);
	if (x < 0) return NaN;
	if (x === 0) return -Infinity;
	if (x === 1) return 0;
	if (x === Infinity) return Infinity;

	return log(x) * LOG2E;
};