9 lines
501 B
JavaScript
9 lines
501 B
JavaScript
const prettyBytes = (num, precision = 3, addSpace = true) => {
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const UNITS = ['B', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB'];
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if (Math.abs(num) < 1) return num + (addSpace ? ' ' : '') + UNITS[0];
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const exponent = Math.min(Math.floor(Math.log10(num < 0 ? -num : num) / 3), UNITS.length - 1);
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const n = Number(((num < 0 ? -num : num) / 1000 ** exponent).toPrecision(precision));
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return (num < 0 ? '-' : '') + n + (addSpace ? ' ' : '') + UNITS[exponent];
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};
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module.exports = prettyBytes;
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