dynamiclly build object keys in javascript

Question

I have this kind of array:

var someArray = ['9213','9234'];

I want to do the following have the following result:

var obj = {
   9213:true,
   9234:true
}

How can i achieve this? something like:

obj = [];
_.each(someArray, function(currentNum,i){
     obj.push(); //here i should do something 
})

If you want an object ({}) why are you initialising an array ([])? — David Thomas
– David Thomas, Commented Oct 11, 2014 at 12:34

antyrat · Accepted Answer · 2014-10-11 12:33:43Z

2

Like this:

obj = {}; // {} means object and [] means array
_.each(someArray, function(currentNum,i){
     obj[ currentNum ] = true;
     //by using [ currentNum ] you will create object property name as "9213" for example.
})

answered Oct 11, 2014 at 12:33

antyrat

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