Question

I want to make a structure like this:

var myThings = {
    thing1: {
        ['24-04-12', '90'],
        ['25-04-12', '90'],
        ['26-04-12', '90']
    },
    thing2: {
        ['24-04-12', '10'],
        ['25-04-12', '30'],
        ['26-04-12', '210']
    }
}

(There are 4 things, hardcoded).

The arrays in each object will be added in a loop, so my code looks like this:

var myThings = {"thing1":{}, "thing2":{}};

I then can’t work out how to push my arrays into the object.

Am I being dumb, or is this not the way to do this?

Thanks a lot!

Answer 1

You need to use an Array instead an Object there. Like

var myThings = {
    thing1: [
        ['24-04-12', '90'],
        ['25-04-12', '90'],
        ['26-04-12', '90']
    ],
    thing2: [
        ['24-04-12', '10'],
        ['25-04-12', '30'],
        ['26-04-12', '210']
    ]
}

Now since thing1 and thing2 are Arrays you can just use Array.prototype.push to push new Arrays into that Array.

Object.keys( myThings ).forEach(function( thing ) {
    myThings[ thing ].push( ['01-01-12', '42'] );
});

That code would add ['01-01-12', '42'] to all current things in that object.

^{Disclaimer: The above code contains ES5. You need a browser which supports that or a Shim to emulate}