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Update prettyBytes.md

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Angelos Chalaris
2018-01-01 19:58:42 +02:00
committed by GitHub
parent 6e52930234
commit 48ce245161
1 changed files with 5 additions and 19 deletions
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snippets/prettyBytes.md
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@ -9,29 +9,15 @@ negative or not.
```js ```js
const prettyBytes = (num, options) => { const prettyBytes = (num, options) => {
options = { precision: 3, addSpace: true, wholeWord: false, ...options }; options = { precision: 3, addSpace: true, ...options };
const UNITS = [ const UNITS = ['B','KB','MB','GB','TB','PB','EB','ZB','YB'];
['B', 'Byte'],
['KB', 'Kilo'],
['MB', 'Mega'],
['GB', 'Giga'],
['TB', 'Tera'],
['PB', 'Peta'],
['EB', 'Exa'],
['ZB', 'Zetta'],
['YB', 'Yotta']
];
if (num < 0) num = -num;
if (num < 1) return (num < 0 ? '-' : '') + num + ' B'; if (num < 1) return (num < 0 ? '-' : '') + num + ' B';
const exponent = Math.min(Math.floor(Math.log10(num) / 3), UNITS.length - 1); const exponent = Math.min(Math.floor(Math.log10(num < 0 ? -num : num) / 3), UNITS.length - 1);
const n = Number((num / 1000 ** exponent).toPrecision(options.precision)); const n = Number(((num < 0 ? -num : num) / 1000 ** exponent).toPrecision(options.precision));
return ( return (
(num < 0 ? '-' : '') + (num < 0 ? '-' : '') +
n + n +
(options.addSpace ? ' ' : '') + (options.addSpace ? ' ' : '') + UNITS[exponent]
UNITS[exponent][options.wholeWord ? 1 : 0] +
(options.wholeWord && exponent > 0 ? 'byte' : '') +
(options.wholeWord && n !== 1 ? 's' : '')
); );
}; };
``` ```