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format time, format duration
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| const padNum = require('padNum') | |
| const formatTime = date => { | |
| const year = date.getFullYear() | |
| const month = date.getMonth() + 1 | |
| const day = date.getDate() | |
| const hour = date.getHours() | |
| const minute = date.getMinutes() | |
| const second = date.getSeconds() | |
| return [year, month, day].map(padNum).join('/') + ' ' + [hour, minute, second].map(padNum).join(':') | |
| } |
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| // const padNum = require('padNum'); | |
| let parseMs = ms => { | |
| if (typeof ms !== 'number') { | |
| throw new TypeError('Expected a number'); | |
| } | |
| const roundTowardsZero = ms > 0 ? Math.floor : Math.ceil; | |
| return { | |
| hours: roundTowardsZero(ms / 3600000), | |
| minutes: roundTowardsZero(ms / 60000) % 60, | |
| seconds: roundTowardsZero(ms / 1000) % 60, | |
| milliseconds: roundTowardsZero(ms) % 1000 | |
| }; | |
| }; | |
| let format = (obj = {}, shouldPad = true) => { | |
| let arr = []; | |
| arr = Object.keys(obj).slice(0, 3).map(key => { | |
| return shouldPad ? padNum(obj[key]) : '' + obj[key]; | |
| }); | |
| return obj.milliseconds ? arr.join(':') + '.' + obj.milliseconds : arr.join(':') | |
| } | |
| let formatDuration = (ms) => { | |
| return format(parseMs(ms)); | |
| } |
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| const getMeridiemSuffixOfInteger = num => | |
| num === 0 || num === 24 | |
| ? { clockHour: 12, suffix: 'am' } | |
| : num === 12 | |
| ? { clockHour: 12, suffix: 'pm' } | |
| : num < 12 | |
| ? { clockHour: (num % 12), suffix: 'am' } | |
| : { clockHour: (num % 12), suffix: 'pm' } |
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| <!doctype html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="utf-8"> | |
| <title>GistRun</title> | |
| <!--<link rel="stylesheet" href="styles.css">--> | |
| </head> | |
| <body> | |
| <h1>Hello world!</h1> | |
| <script src="padNum.js"></script> | |
| <script src="formatDuration.js"></script> | |
| <script src="script.js"></script> | |
| </body> | |
| </html> |
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| function padNum (n) { | |
| n = '' + n; | |
| let width = 2 - n.length; | |
| return width > 0 ? Array(width + 1).join('0') + n : n; | |
| } |
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| const HOUR_MS = 3600000 | |
| const MINUTE_MS = 60000 | |
| const SECOND_MS = 1000 | |
| let parseMs = ms => { | |
| if (typeof ms !== 'number') { | |
| throw new TypeError('Expected a number'); | |
| } | |
| const roundTowardsZero = ms > 0 ? Math.floor : Math.ceil; | |
| return { | |
| hours: roundTowardsZero(ms / HOUR_MS), | |
| minutes: roundTowardsZero(ms % HOUR_MS / MINUTE_MS), | |
| seconds: roundTowardsZero(ms % MINUTE_MS / SECOND_MS), | |
| milliseconds: roundTowardsZero(ms % 1000) | |
| }; | |
| }; |
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| function humanToMs (str = '00:00:00') { | |
| let parts = str.split(':') | |
| let secParts = parts[2].split('.') | |
| parts[2] = secParts[0] | |
| parts[3] = secParts[1] || 0 | |
| const msMap = { | |
| h: 60 * 60 * 1000, | |
| m: 60 * 1000, | |
| s: 1000, | |
| ms: 1 | |
| } | |
| let keys = Object.keys(msMap) | |
| return parts.reduce((memo, item, i) => { | |
| return memo + (item - 0) * msMap[keys[i]] | |
| }, 0) | |
| } | |
| let d = humanToMs('19:02:13.333') | |
| console.log(d) | |
| console.log(formatDuration(d)) |
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