Last day of the previous month - In Specific format using JS

Question

Want to display last day of the previous month using JS.

I need pure JS code than other Library.

Format Needed : Jan 31, 2017

first search https://www.google.es/search?q=last+day+in+js+of+each+month&oq=last+day+in+js+of+each+month&aqs=chrome..69i57.6544j0j7&sourceid=chrome&ie=UTF-8 — Álvaro Touzón, Nov 03 '17 at 07:21
Can you show us anything where you tried to solve the problem? — , Nov 03 '17 at 07:21
How will Jan 18, 2017 becomes last day of previous month? Could you explain the requirement and show your work? — Nitheesh, Nov 03 '17 at 07:21

score 1 · Accepted Answer · answered Nov 03 '17 at 08:07

1

I always use Moment.js whenever I want work with dates which gives you lot's of options for format your date, but since you said with plain javascript, you can made a method like this to format your date :

function formatDate(date) {
   date.setDate(0);
   var monthNames = [
    "January", "February", "March",
    "April", "May", "June", "July",
    "August", "September", "October",
    "November", "December"
 ];

 var day = date.getDate();
 var monthIndex = date.getMonth();
 var year = date.getFullYear();

 return  monthNames[monthIndex] +  ' ' + day  + ' ' + year;
}

console.log(formatDate(new Date()));

Basiclly date.setDate(0); will change the date to last day of the previous month.

answered Nov 03 '17 at 08:07

Emad Dehnavi

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Thanks @Emad Dehnavi - Helped me a lot – Sarath Nov 03 '17 at 09:34
For anyone stumbling across this in 2021: `date.toLocaleDateString('en-US', {year: 'numeric', month: 'long', day: 'numeric' })` will achieve the same as above without the array of month names, and `date.toLocaleDateString('en-US', {year: 'numeric', month: 'short', day: 'numeric' })` will give the format the OP asked for. – OffBy0x01 Sep 21 '21 at 11:28

Last day of the previous month - In Specific format using JS

1 Answers1