Rahul  Hickle

Rahul Hickle

1591330020

JavaScript Best Practices — Constructors and Classes

JavaScript Best Practices — Constructors and Classes
JavaScript lets us do a lot of things. It’s sometimes too forgiving in its syntax.
In this article, we’ll look at some best practices when developing in JavaScript, including object creation and constructors.

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JavaScript Best Practices — Constructors and Classes

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Private Class Fields and Methods in JavaScript Classes

JavaScript private class fields and methods are new features for JavaScript classes. In this tutorial, you will learn all you need to know about this feature. You will learn about what private methods and class fields are and how they work. You will also learn how to use them in your projects.

Introduction

When you want to add some data to JavaScript class you can do so through class properties. These properties are by default always public. This also means that they are publicly accessible and modifiable. The same also applies to class methods. They are also public by default.

This might often be okay. However, sometimes, you may want to keep some properties or methods private. You may want to make them inaccessible from the outside of the class they are defined in. This is where private methods and class fields can be handy.

Keeping it private

The idea of keeping some things private is simple and straightforward. When you want to keep something private, be it a property or method, it should be accessible only from one place. This place is the class in which you defined that property or method.

If you try to access private class field or method from elsewhere JavaScript should not allow it. This includes outside the class in which the class field or method is defined. Also any instance of that class. However, it is possible to access private class field from a method inside the same class.

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Lowa Alice

Lowa Alice

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JavaScript Constructor Functions. IN JUST 6 MINUTES!!!

JavaScript Constructor Functions made simple.

📺 The video in this post was made by Programming with Mosh
The origin of the article: https://www.youtube.com/watch?v=23AOrSN-wmI&list=PLTjRvDozrdlxEIuOBZkMAK5uiqp8rHUax&index=10
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Rahul Jangid

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What is JavaScript - Stackfindover - Blog

Who invented JavaScript, how it works, as we have given information about Programming language in our previous article ( What is PHP ), but today we will talk about what is JavaScript, why JavaScript is used The Answers to all such questions and much other information about JavaScript, you are going to get here today. Hope this information will work for you.

Who invented JavaScript?

JavaScript language was invented by Brendan Eich in 1995. JavaScript is inspired by Java Programming Language. The first name of JavaScript was Mocha which was named by Marc Andreessen, Marc Andreessen is the founder of Netscape and in the same year Mocha was renamed LiveScript, and later in December 1995, it was renamed JavaScript which is still in trend.

What is JavaScript?

JavaScript is a client-side scripting language used with HTML (Hypertext Markup Language). JavaScript is an Interpreted / Oriented language called JS in programming language JavaScript code can be run on any normal web browser. To run the code of JavaScript, we have to enable JavaScript of Web Browser. But some web browsers already have JavaScript enabled.

Today almost all websites are using it as web technology, mind is that there is maximum scope in JavaScript in the coming time, so if you want to become a programmer, then you can be very beneficial to learn JavaScript.

JavaScript Hello World Program

In JavaScript, ‘document.write‘ is used to represent a string on a browser.

<script type="text/javascript">
	document.write("Hello World!");
</script>

How to comment JavaScript code?

  • For single line comment in JavaScript we have to use // (double slashes)
  • For multiple line comments we have to use / * – – * /
<script type="text/javascript">

//single line comment

/* document.write("Hello"); */

</script>

Advantages and Disadvantages of JavaScript

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