Question

Note that this is an actual Javascript object, whereas
JSON is a string that represents that object.

JSONExample = {
"frames": {
    "chaingun.png": {
        "frame": {
            "x": 1766,
            "y": 202,
            "w": 42,
            "h": 34
        },
        "rotated": false,
        "trimmed": true,
        "spriteSourceSize": {
            "x": 38,
            "y": 32,
            "w": 42,
            "h": 34
        },
        "sourceSize": {
            "w": 128,
            "h": 128
        }
    },
    "chaingun_impact.png": {
        "frame": {
            "x":1162,
            "y":322,
            "w":38,
            "h":34},
        "rotated": false,
        "trimmed": true,
        "spriteSourceSize": {
            "x":110,
            "y":111,
            "w":38,
            "h":34},
        "sourceSize": {
            "w":256,
            "h":256}
    },
    "chaingun_impact_0000.png": {
        "frame": {
            "x": 494,
            "y": 260,
            "w": 22,
            "h": 22
        },
        "rotated": false,
        "trimmed": true,
        "spriteSourceSize": {
            "x": 113,
            "y": 108,
            "w": 22,
            "h": 22
        },
        "sourceSize": {
            "w": 256,
            "h": 256
        }
    }
}
};

The above is an example of how the JSON would be structured.
Note that chaingun_impact.png is not here, we’ll call your
parseJSON function with the full JSON input.

parseJSON = function (weaponJSON) {
 // Your Code here 

};

I want to grab the ‘x’ data field within ‘spriteSourceSize’ of ‘chaingun_impact.png’ .

Thanks in advace

Edit

and this is what i tried but it doesn’t work

var parsedjson =  JSON.parse(weaponJSON);
alert(parsedjson);
console.log(pardesjson);
var x = parsedjson ['frames']['chaingun_impact.png']['spriteSourceSize'][x];
console.log(x);

Answer 1

Use parsedjson['frames']['chaingun_impact.png']['spriteSourceSize']['x'];

The 'x' also needs quotes.

You could also do it this way:

parsedjson.frames['chaingun_impact.png'].spriteSourceSize.x;