54 lines
1.1 KiB
JavaScript
54 lines
1.1 KiB
JavaScript
const minute = 60
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const hour = minute * 60
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const day = hour * 24
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const week = day * 7
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const year = day * 365.25
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const REGEX = /^(\d+|\d+\.\d+) ?(seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|weeks?|w|years?|yrs?|y)$/i
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module.exports = (str) => {
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const matched = REGEX.exec(str)
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if (!matched) {
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throw new TypeError(`invalid time period format ("${str}")`)
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}
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const value = parseFloat(matched[1])
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const unit = matched[2].toLowerCase()
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switch (unit) {
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case 'sec':
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case 'secs':
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case 'second':
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case 'seconds':
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case 's':
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return Math.round(value)
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case 'minute':
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case 'minutes':
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case 'min':
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case 'mins':
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case 'm':
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return Math.round(value * minute)
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case 'hour':
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case 'hours':
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case 'hr':
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case 'hrs':
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case 'h':
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return Math.round(value * hour)
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case 'day':
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case 'days':
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case 'd':
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return Math.round(value * day)
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case 'week':
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case 'weeks':
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case 'w':
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return Math.round(value * week)
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case 'year':
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case 'years':
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case 'yr':
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case 'yrs':
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case 'y':
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return Math.round(value * year)
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}
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}
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