The this keyword in JavaScript refers to the current object. The this keyword is used in object methods to refer to the object that the method is called on.
For example, the following code defines a method called fullName() that returns the full name of an object:
const person = {
name: "John Doe",
lastName: "Doe",
fullName() {
return this.name + " " + this.lastName;
}
};
The fullName() method is called on the person object. The this keyword in the fullName() method refers to the person object. So, the expression this.name refers to the name property of the person object, and the expression this.lastName refers to the lastName property of the person object.
The this keyword can also be used in other contexts, such as in function expressions and arrow functions. However, the most common use of the this keyword is in object methods.
The video tutorial will discuss the following topics:
What is the this keyword in JavaScript?
How is the this keyword used in object methods?
Other contexts where the this keyword can be used
