Compare two objects to determine if the first one contains equivalent property values to the second one

//#Source https://bit.ly/2neWfJ2
const matches = (obj, source) =>
  Object.keys(source).every(key => obj.hasOwnProperty(key) && obj[key] === source[key]);
console.log(matches({ age: 25, hair: 'long', beard: true }, { hair: 'long', beard: true })); // true
console.log(matches({ hair: 'long', beard: true }, { age: 25, hair: 'long', beard: true })); // false
console.log(matches({ hair: 'long', beard: true }, { age: 26, hair: 'long', beard: true })); // false

 Output:

true
false
false