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Static Properties and Functions in JavaScript

Static Properties and Functions in JavaScript

Static Properties and Functions in JavaScript

In this post, we will give you information about Static Properties and Functions in JavaScript. Here we will give you detail about Static Properties and Functions in JavaScript And how to use it also give you a demo for it if it is necessary.

In an ES6 class, the static keyword lets you define a function on the class itself, as opposed to instances of the class.

class MyClass {
  static myFunction() {
    return 42;
  }
}

typeof MyClass.myFunction; // 'function'
MyClass.myFunction(); // 42

// 'myFunction()' is a function on 'MyClass', **not**
// instances of 'MyClass'
const obj = new MyClass();
obj.myFunction; // undefined

In JavaScript, a class is an object like any other. So statics let you define functions on the class within the class definition. Equivalently, you can just assign a function to MyClass:

class MyClass {}
MyClass.myFunction = function() {
  return 42;
};

MyClass.myFunction(); // 42

With this

Within static functions, this refers to the class.

class MyClass {
  static myFunction() {
    return this;
  }
}

MyClass.myFunction() === MyClass; // true

Static Properties for Static Properties and Functions in JavaScript

Static properties, also known as class fields, are currently a Stage 3 TC39 proposal, which means they are technically not part of the JavaScript language yet. However, they are supported in more recent versions of Google Chrome.

class MyClass {
  static answer = 42;
}

MyClass.answer; // 42

Be careful when using static properties with non-primitive values. If you use inheritance with non-primitive static properties, each class that inherits from your class will have the same copy of the object.

class MyClass {
  static val = new Object();
}

class MyChildClass extends MyClass {}

MyChildClass.val === MyClass.val; // true

 

JavaScript Fundamentals for Static Properties and Functions in JavaScript

JavaScript is a programming language that is used to create interactive web pages. It is a client-side scripting language, which means that it runs on the user’s browser. JavaScript can be used to add animation, interactivity, and functionality to web pages.

Here are some of the fundamentals of JavaScript:

These are just some of the fundamentals of JavaScript. There are many other concepts that you can learn as you continue to develop your skills.

Here are some resources that you can use to learn more about JavaScript:

I hope this helps for Static Properties and Functions in JavaScript!

Here are some additional tips for learning JavaScript:

With a little practice, you’ll be able to learn JavaScript and start building amazing web applications.

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