以另一种格式格式化的字符串日期 JavaScript

Question

I need a way to parse string date to another format string or date

Tuesday, December 28, 2022   this string date into that format    2022-12-28 

I can make it with hardcoding but I think it is not the best way, any good ideas on how I can format that string?

Answer 1

The way to parse string date to another format string or date like this 2022-12-28 is:

function dateFormat(date) {
    var d = new Date(date),
        month = '' + (d.getMonth() + 1),
        day = '' + d.getDate(),
        year = d.getFullYear();

    if (month.length < 2) 
        month = '0' + month;
    if (day.length < 2) 
        day = '0' + day;

    return [year, month, day].join('-');
}
 
console.log(dateFormat('Sun Dec 12,2022'));