Finding the intersection of properties in Javascript objects

Question

Hi guys suppose I have following two objects

var obj1 = {one:232,two:3123,three:3232}
var obj2 = {one:323,three:3444,seven:32}

I am trying writ

Answer 1

Make it easy on yourself-

Object.keys returns an array, you can use array filter.

var commonproperties= function(o1, o2){
    return Object.keys(o1).filter(function(itm){
        return itm in o2
    });
}

var obj1 = {one:232,two:3123,three:3232},
obj2 = {one:323,three:3444,seven:32};
commonproperties(obj1 ,obj2);

/*  returned value: (Array)
['one','three']
*/