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
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Possible duplicate of Adding text to beginning of each array element and How to add a dot before each item in this list of array? and How to add text to end of each array element using map? and How to add prefix to array values? and Add a prefix to all the element of an array of strings using javascriptadiga– adiga2019-02-06 06:06:59 +00:00Commented Feb 6, 2019 at 6:06
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"1999-00-00" is not a valid date.RobG– RobG2019-02-06 06:29:50 +00:00Commented Feb 6, 2019 at 6:29
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2 Answers
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)
Comments
You can use Array#map to do it. But the returned array will have the values as string not as Date object.
const year = [1999,2000,2001,2002,2003];
const dateString = year.map((ele) => `${ele}-00-00`);
console.log(dateString);
//Convert this array to Date Objects using Date constructor Date(year, monthIndex, day) month starts from '0'
const date = dateString.map((str) => {
const data = str.split('-');
return new Date(data[0], data[1], data[2]+1);
});
console.log(date)
//To verify parse to date strings
const dateParsed = date.map((date) => date.toDateString());
console.log(dateParsed);