- // Thanks: https://github.com/monolithed/ECMAScript-6
- "use strict";
- var exp = Math.exp;
- module.exports = function (value) {
- if (isNaN(value)) return NaN;
- value = Number(value);
- if (value === 0) return value;
- if (value === Infinity) return Infinity;
- if (value === -Infinity) return -1;
- if (value > -1.0e-6 && value < 1.0e-6) return value + (value * value) / 2;
- return exp(value) - 1;
- };
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