Method Object.keysIntersection
Summary:
Compares two objects returning an Array of matching keys
This is a STATIC method and should only be called directly off Object, and not any instances of Object created by the browser or user.
- Calling Convention:
-
Object.keysIntersection(object1, object2) - Parameters
-
- object1
- First object to compare
- object2
- Second object to compare
- Returns:
- An Array of matching keys, if there are no matches an empty Array is returned. The keys will be in the same order they were in object1.
Examples
var
test1 = { 'a' : 1, 'b' : 2, 'c' : 3 },
test2 = { 'b' : 1, 'd' : 2, 'e' : 8 },
test3 = { 'd' : 5, 'e' : 4, 'f' : 4 };
console.log(Object.keysIntersection(test1, test2)); // [ 'b' ]
console.log(Object.keysIntersection(test2, test3)); // [ 'd', 'e' ]
console.log(Object.keysIntersection(test1, test3)); // []