i want to set key as number in my key value pair set

Question

    var i=0;
    var mainObj={};
    while(i<2){
        var obj={};
        obj.x ="data";
        obj.y= "data";
        mainObj.i=obj
        i=i+1;
    }
    console.log(JSON.stringify(mainObj));

output :- {"j":{"x":"data"."y":"data"}} {"j":{"x":"data"."y":"data"}}

Expected Output : {0:{"x":"data"."y":"data"},1:{"x":"data"."y":"data"}}

how to achieve this expected output i need the same output key should be number either in string format or number format

You cannot achieve that output. Keys of objects are always strings or symbols. Even when assigning a number as the key, it's converted to a string. So, you can get `{"0":{"x":"data","y":"data"},"1":{"x":"data","y":"data"}}` . To do that, you need [Add a property to a JavaScript object using a variable as the name?](https://stackoverflow.com/q/695050) — VLAZ, Feb 04 '22 at 14:49
[Working with objects - JavaScript | MDN](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Working_with_Objects) — Andreas, Feb 04 '22 at 14:57

score 3 · Answer 1 · answered Feb 04 '22 at 14:48

3

Try mainObj[i] = obj instead of mainObj.i = obj to use a computed key.

answered Feb 04 '22 at 14:48

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i want to set key as number in my key value pair set

1 Answers1