Question

143

javascript create array from for loop

rated 0 times [ 149] [ 6] / answers: 1 / hits: 199190 / 12 Years ago, wed, september 19, 2012, 12:00:00

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]

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stefanicarolinat

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answered 12 Years ago shelbiec · Accepted Answer

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++);