26 lines
1.0 KiB
Markdown
26 lines
1.0 KiB
Markdown
###formatDuration
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Returns the human readable format of the given number of milliseconds. If milliseconds is equal to `0` return `'now'` .
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``` js
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const formatDuration = milliseconds => {
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if(milliseconds === 0) return 'now'
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if(milliseconds < 0) milliseconds = -milliseconds
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const join = (arr, separator = ',', end = separator) =>
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arr.reduce(
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(acc, val, i) =>
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i == arr.length - 2
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? acc + val + end
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: i == arr.length - 1 ? acc + val : acc + val + separator,
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''
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);
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const pluralize = (num, word, plural = word + 's') =>
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Number(num) === 1 ? word : plural;
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let date = new Date(milliseconds)
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let array = [date.getUTCMilliseconds(),date.getUTCSeconds(),date.getUTCMinutes(),date.getUTCHours(),date.getUTCDate()-1,date.getUTCMonth(),date.getUTCFullYear()-1970]
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let time = ["millisecond","second","minute","hour","day","month","year"]
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array = array.map((el,i) => [el,time[i]]).filter(el => el[0] !== 0).map(el => [el[0],pluralize(el[0],el[1])]).map(el => el[0] + ' ' + el[1])
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return join(array.reverse(),', ',' and ')
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}
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```
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