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// Thanks: https://github.com/monolithed/ECMAScript-6/blob/master/ES6.js
'use strict';
var log = Math.log;
module.exports = function (x) {
if (isNaN(x)) return NaN;
x = Number(x);
if (x < -1) return NaN;
if (x === -1) return -Infinity;
if (x === 0) return x;
if (x === Infinity) return Infinity;
if (x > -1.0e-8 && x < 1.0e-8) return (x - x * x / 2);
return log(1 + x);
};
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