📜  javascript代码示例中的this关键字

📅  最后修改于: 2022-03-11 15:01:42.692000             🧑  作者: Mango

代码示例6
// 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);