Compare two objects properties in JS

Question

I need to compare two objects, and find out what properties are missing. The objects are fairly big, with several levels.

I will give short example of the type of object

Answer 1

I have just made a quick example here, not sure exactly how you want to apply this, but I have added the missing items to an array, which is logging it.

Obj1 should be your standard comparison object, obj2 the one received from request.

var obj1 = {};
obj1.test1 = 0;
obj1.test2 = 0;
obj1.test2222 = 0;
obj1.testLoremIpsum = 0;
obj1.lalala = 0;

var obj2 = {};
obj2.test1 = 0;
obj2.test25 = 0;
obj2.lalala1 = 0;

var k , i = 0;
var missingProps = [];

for( i in obj1 )
{
    var isFound = false;
    for( k in obj2) if( i == k ) isFound = true;
    if(!isFound) missingProps.push( i );
}
console.log(missingProps);