JavaScript: Array of numbers to date-time string format

Question

I have an array of number

var year = [1999,2000,2001,2002,2003];

and I need to convert to date-time formar

var yearConvert =["1999-00-00","2000-00-00","2001-00-00","20002-00-00","2003-00-00"];

I only have year which is an integer

Answer 1

You can use map and concat -00-00 on each element

var year = [1999,2000,2001,2002,2003];

let op = year.map(e => e+'-00-00')

console.log(op)