create object methods js code example

Example 1: object methods in javascript

/// OBJECTS IN JAVASCRIPT
const testScore = {
  damon: 89,
  shawn: 91,
  keenan: 80,
  kim: 89,
};

Object.keys(testScore);  // gives all keys
Object.values(testScore); // gives all values
Object.entries(testScore); // gives nested arrays of key-value pairs

// YOU CAN USE ( FOR-IN )  LOOP FOR ITERATION OVER OBJECTS
for (let person in testScore) {...} 

// WE CAN'T DIRECTLY USE ( FOR-OF ) LOOP IN OBJECTS BUT WE CAN DO Like THIS:
for(let score of Object.values(testScore)){
  	console.log(score)  // 89 91 80 89 
}

Example 2: js object.create example

function userCreator (name, score) {
	const newUser = Object.create(userFunctionStore);
  	newUser.name = name;
  	newUser.score = score;
  	return newUser;
};

const userFunctionStore = {
  	increment: function() {
      	this.score++;
    },
  
  	login: function() {
     	console.log("Logged in!"); 
    }
};

const user1 = userCreator("Justin", 41);
const user2 = userCreator("Rainer", 5);
user1.increment();
console.log(user1.score) // 42