what is this in javascript
// this = current execution context (window in browser, global in nodejs)
console.log(this) // window object
function foo () {
console.log(this); // object calling this function
}
foo(); // undefined
o={ foo }
o.foo(); // 'o' object loggedthis keyword in javascript
// this keyword
// This keyword belongs to the object it belongs to
// (1).Alone, this refers to the global object.
// (2).In a regular function,this refers to the global object.
// (3).In a method, this refers to the owner object.
// 1
console.log(this);
// 2
function abc() {
console.log(this);
}
abc();
// 3
const obj = {
name: "Abhishek",
no: 1,
sum: function (a, b) {
console.log("hello sum", a + b);
console.log("this:::", this);
console.log("this name:::", this.name);
},
};
obj.sum(4, 3);Copyright © 2021 Codeinu
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