Compare keys and values of two objects

compare.js

/**
* Use this to compare one object's properties to corresponding properties on another object.
* Returns true if b contains all of the properties of a with the same values. Object b
* can contain more properties than object a, the important thing is that the values
* and property names of a are found on b. Enumerable properties only!
*/
 
function compare(a, b) {
	var isEqual = [];
	var keys = Object.keys(a);

	keys.forEach(function(prop, id, obj) {
		if( a[prop] === b[prop] ) isEqual.push(true);
	});

 return isEqual.length === keys.length;
}