⏱ 0:05est. 3 min

Chapter 59- Dangerous Aside ('new' and Functions)

Notes

Example 1 : //We use first letter as the capital letter in case of function constructor
function Person(firstname, lastname){ //Constructor
	console.log(this); // Person {}
	this.firstname =firstname;
	this.lastname =lastname;
}
person.prototype.getFullName = function (){
	return this.firstname + ‘ ' + this.lastname;
}

//If we don't use new keyword, It will still execute the function but it returns undefined
var john = Person(‘John', ‘Doe');
//so following line of code with throw an error, as we are accessing prototype of undefined
console.log(john.getFullName);
//So always use new keyword to access prototype properties

Chapter 59- Dangerous Aside ('new' and Functions)

Notes​

Notes