javascript - check if object is empty

Question

I am trying to create to javascript/jquery test to check if my object is empty and cannot figure it out.

Here is the object when it has something in it:

Answer 1

Alternatively, you can write the isEmpty function on the Object prototype.

Object.prototype.isEmpty = function() {
    for(var key in this) {
        if(this.hasOwnProperty(key))
            return false;
    }
    return true;
}

Then you can easily check if the object is empty like so.

var myObj = {
    myKey: "Some Value"
}

if(myObj.isEmpty()) {
    // Object is empty
} else {
    // Object is NOT empty (would return false in this example)
}

Source solution: https://coderwall.com/p/_g3x9q/how-to-check-if-javascript-object-is-empty