How to quote the this keyword of JavaScript
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JavaScript this keyword
In an object-oriented language, this represents a reference to the current object.
But in JavaScript, this is not fixed, it will change with the change of execution environment.
In a method, this represents the object to which the method belongs.
If used alone, this represents a global object.
In the function, this represents the global object.
In the function, this is undefined (undefined) in strict mode.
In an event, this represents the element that receives the event.
Methods like call () and apply () can reference this to any object.
Case study
Var person = {
FirstName: "John"
LastName: "Doe"
Id: 5566
FullName: function () {
Return this.firstName + "" + this.lastName
}
}
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