Question

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How to find a value in a multidimensional object/array in Javascript?

I’ve these JavaScript objects in an array:

[{"id": 3}, {"id": 32}, {"id": 33}, {"id": 34}]

How can I perform an IF statement like this:

list = [3,32,33,34]
if x in list:
    "in the list!"
else:
    "not in the list"

How can I do this using jQuery/Javascript?

Any clues?

---

Edit:

This is a JSON output:

[{"id": 3}, {"id": 32}, {"id": 33}, {"id": 34}]

Answer 1

Note: there is nothing such as JSON objects. Those are JavaScript objects. JSON is a subset of JavaScript.

If the layout of the object is the way you exemplified it:

function hasVal(obj, val) {
    for(var i = 0, len = obj.length; i < len; i ++) {
        for(var key in obj[i]) {
             if(obj[i][key] == val) return true;
        }
    }
    return false;
}

Then call it as such:

var obj = [{"id": 3}, {"id": 32}, {"id": 33}, {"id": 34}];
hasVal(obj, 32); //returns true
hasVal(obj, 10); //returns false