Best way to flatten JS object (keys and values) to a single depth array

Question

I have written this small function to get all keys and values of an object and store them into an array. The object might contain arrays as values...

Object {

Answer 1

You can skip the inner loop if you have to push contents of an array to another array. See if this helps --

function flattenObject(obj) {
// Returns array with all keys and values of an object
var array = [];
$.each(obj, function (key, value) {
    array.push(key);
    if ($.isArray(value)) {
        Array.prototype.push.apply(array, value);
    }
    else {
        array.push(value);
    }
});

return array;
}
var obj = {"key1" : [1,3,3],"key2" : "val", "key3":23};
var output = flattenObject(obj);
console.log(output);

Fiddle Link -- https://jsfiddle.net/0wu5z79a/1/

EDIT : This solution is valid only for your scenario where you know that the nesting is till one level only else you need to have some recursion for deep inner objects.