javascript create array from for loop

Question

I have a years range stored into two variables. I want to create an array of the years in the range.

something like:

var yearStart = 2000; var yearEnd = 2040;  var arr = [];  for (var i = yearStart; i < yearEnd; i++) {       var obj = {         ...       };        arr.push(obj); } 

What should I put inside the obj ?

The array I'd like to generate would be like:

arr = [2000, 2001, 2003, ... 2039, 2040] 

Answer 1

even shorter if you can lose the yearStart value:

var yearStart = 2000; var yearEnd = 2040;  var arr = [];  while(yearStart < yearEnd+1){   arr.push(yearStart++); } 

UPDATE: If you can use the ES6 syntax you can do it the way proposed here:

let yearStart = 2000; let yearEnd = 2040; let years = Array(yearEnd-yearStart+1)     .fill()     .map(() => yearStart++); 

Answer 2

You need to push i

var yearStart = 2000; var yearEnd = 2040;  var arr = [];  for (var i = yearStart; i < yearEnd+1; i++) {     arr.push(i); } 

Then, your resulting array will be:

arr = [2000, 2001, 2003, ... 2039, 2040]

Hope this helps