Question

How to create an array of dates between a start and end date in JavaScript

Answer 1

let start = new Date("2020-05-01");
let end   = new Date("2020-05-14");
let arr   = [];

for (let d = start; d <= end; d.setDate(d.getDate() + 1)) {
    arr.push(d.toString());
}
console.log(arr);


/*
run:

[
"Fri May 01 2020 03:00:00 GMT+0300 (Israel Daylight Time)" ,
"Sat May 02 2020 03:00:00 GMT+0300 (Israel Daylight Time)" ,
"Sun May 03 2020 03:00:00 GMT+0300 (Israel Daylight Time)" ,
"Mon May 04 2020 03:00:00 GMT+0300 (Israel Daylight Time)" ,
"Tue May 05 2020 03:00:00 GMT+0300 (Israel Daylight Time)" ,
"Wed May 06 2020 03:00:00 GMT+0300 (Israel Daylight Time)" ,
"Thu May 07 2020 03:00:00 GMT+0300 (Israel Daylight Time)" ,
"Fri May 08 2020 03:00:00 GMT+0300 (Israel Daylight Time)" ,
"Sat May 09 2020 03:00:00 GMT+0300 (Israel Daylight Time)" ,
"Sun May 10 2020 03:00:00 GMT+0300 (Israel Daylight Time)" ,
"Mon May 11 2020 03:00:00 GMT+0300 (Israel Daylight Time)" ,
"Tue May 12 2020 03:00:00 GMT+0300 (Israel Daylight Time)" ,
"Wed May 13 2020 03:00:00 GMT+0300 (Israel Daylight Time)" ,
"Thu May 14 2020 03:00:00 GMT+0300 (Israel Daylight Time)"
] 

*/

 

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Answer 2

let start = new Date("2020-05-01");
let end   = new Date("2020-05-14");
let arr   = [];
 
do {
   arr.push(new Date(start));
   start.setDate(start.getDate() + 1);
} while(start <= end)

console.log(arr);
 
 
/*
run:
 
[
Fri May 01 2020 03:00:00 GMT+0300 (Israel Daylight Time) ,
Sat May 02 2020 03:00:00 GMT+0300 (Israel Daylight Time) ,
Sun May 03 2020 03:00:00 GMT+0300 (Israel Daylight Time) ,
Mon May 04 2020 03:00:00 GMT+0300 (Israel Daylight Time) ,
Tue May 05 2020 03:00:00 GMT+0300 (Israel Daylight Time) ,
Wed May 06 2020 03:00:00 GMT+0300 (Israel Daylight Time) ,
Thu May 07 2020 03:00:00 GMT+0300 (Israel Daylight Time) ,
Fri May 08 2020 03:00:00 GMT+0300 (Israel Daylight Time) ,
Sat May 09 2020 03:00:00 GMT+0300 (Israel Daylight Time) ,
Sun May 10 2020 03:00:00 GMT+0300 (Israel Daylight Time) ,
Mon May 11 2020 03:00:00 GMT+0300 (Israel Daylight Time) ,
Tue May 12 2020 03:00:00 GMT+0300 (Israel Daylight Time) ,
Wed May 13 2020 03:00:00 GMT+0300 (Israel Daylight Time) ,
Thu May 14 2020 03:00:00 GMT+0300 (Israel Daylight Time)
] 
 
*/

 

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