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15 lines
280 B
JavaScript
15 lines
280 B
JavaScript
'use strict';
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var log = Math.log, LOG10E = Math.LOG10E;
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module.exports = function (x) {
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if (isNaN(x)) return NaN;
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x = Number(x);
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if (x < 0) return NaN;
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if (x === 0) return -Infinity;
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if (x === 1) return 0;
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if (x === Infinity) return Infinity;
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return log(x) * LOG10E;
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};
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