Created
February 12, 2021 12:40
-
-
Save arosenkranz/c9e9e1f360d4bbc93b29f3b523893fff to your computer and use it in GitHub Desktop.
Date Formats
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
const addDateSuffix = (date) => { | |
let dateStr = date.toString(); | |
// get last char of date string | |
const lastChar = dateStr.charAt(dateStr.length - 1); | |
if (lastChar === '1' && dateStr !== '11') { | |
dateStr = `${dateStr}st`; | |
} else if (lastChar === '2' && dateStr !== '12') { | |
dateStr = `${dateStr}nd`; | |
} else if (lastChar === '3' && dateStr !== '13') { | |
dateStr = `${dateStr}rd`; | |
} else { | |
dateStr = `${dateStr}th`; | |
} | |
return dateStr; | |
}; | |
// function to format a timestamp, accepts the timestamp and an `options` object as parameters | |
module.exports = ( | |
timestamp, | |
{ monthLength = 'short', dateSuffix = true } = {} | |
) => { | |
// create month object | |
const months = { | |
0: monthLength === 'short' ? 'Jan' : 'January', | |
1: monthLength === 'short' ? 'Feb' : 'February', | |
2: monthLength === 'short' ? 'Mar' : 'March', | |
3: monthLength === 'short' ? 'Apr' : 'April', | |
4: monthLength === 'short' ? 'May' : 'May', | |
5: monthLength === 'short' ? 'Jun' : 'June', | |
6: monthLength === 'short' ? 'Jul' : 'July', | |
7: monthLength === 'short' ? 'Aug' : 'August', | |
8: monthLength === 'short' ? 'Sep' : 'September', | |
9: monthLength === 'short' ? 'Oct' : 'October', | |
10: monthLength === 'short' ? 'Nov' : 'November', | |
11: monthLength === 'short' ? 'Dec' : 'December', | |
}; | |
const dateObj = new Date(timestamp); | |
const formattedMonth = months[dateObj.getMonth()]; | |
const dayOfMonth = dateSuffix | |
? addDateSuffix(dateObj.getDate()) | |
: dateObj.getDate(); | |
const year = dateObj.getFullYear(); | |
let hour = | |
dateObj.getHours() > 12 | |
? Math.floor(dateObj.getHours() - 12) | |
: dateObj.getHours(); | |
// if hour is 0 (12:00am), change it to 12 | |
if (hour === 0) { | |
hour = 12; | |
} | |
const minutes = (dateObj.getMinutes() < 10 ? '0' : '') + dateObj.getMinutes(); | |
// set `am` or `pm` | |
const periodOfDay = dateObj.getHours() >= 12 ? 'pm' : 'am'; | |
const formattedTimeStamp = `${formattedMonth} ${dayOfMonth}, ${year} at ${hour}:${minutes} ${periodOfDay}`; | |
return formattedTimeStamp; | |
}; |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment