What is javascript

What is JavaScript?

Earlier we gave you information about many programming languages, but today we will tell you what is JavaScript and why is it used? If you want to become a programmer then it is very important to choose the right language before learning any language. When you search for information on the Internet, you browse many web pages written in different languages. Similarly, despite there being programming languages like Python, Java, PHP, and C++, why should you use JavaScript?

We have given you information about many programming languages before, but today we know why JavaScript is used? If you have become a programmer then it is very important to choose the right language before any language. When you search for information on the Internet, you browse many web pages written in different languages. Similarly, why should you use JavaScript over Python, Java, PHP, and C++?

Some important points to understand JavaScript definition

JavaScript is a client-side scripting language. That source code is processed by the server rather than the client's web browser.
You can use it to add HTML to any web page. Additionally, static content can be changed and the page style can also be modified.
It was originally developed to add dynamic and interactive elements to websites.
It is open and cross-platform which aims to provide a better user experience.
Like PHP and ASP, JavaScript code can also be inserted inside the HTML of a web page.
Cookies can be obtained and set with the help of JavaScript. It is also used to organize quiz and massage shows with the visitors.

History (History of JavaScript)

JavaScript was invented in 1995 by a programmer at Netscape Communications Corporation named Brendan Eich. It took only 10 days to create this scripting language. At that time its name was 'Mocha', then it was changed to 'Marathi LiveScript' and finally to 'Slam'.

Although its official name was given as 'ECMAScript', people still called it JavaScript. Netscape browser version 2.0b3 was first used in December 1995. This was followed in 1998 by the release of ECMAScript 2 and 3, which is today's modern JavaScript.

Almost all major websites including Google and Facebook are available here. Netscape had a very strong presence on the young Web at the time. Netscape Communicator, NCSA's first browser, became very popular. But later when Microsoft created Internet Explorer, its priority reduced considerably.

Some Basics of JavaScript

JavaScript syntax

JS syntax is defined by a set of rules. Which establishes how the language will be written by the programmer and how it will be interpreted by the browser. JavaScript is implemented in a web page using JavaScript statements inside <script> HTML tags.

You can place the script tag anywhere inside your web page but the recommended way is to place it inside the <head> tag. The purpose of using edit is to make it possible for this browser program to begin interpreting all text used between tags as a script.

javascript variables

Like many other programming languages, JavaScript also has variables. These are loosely typed, meaning it is not necessary to declare a data type. You can preserve any number of literal values for variables. Before you can use variables in any JavaScript program, you must declare them. Thorn is declared with the WAR keyword.

JavaScript Operators

Use these operators and much more needs to be done. For example 2+3 = 5. Here 2 and 3 are called operands and the expression '+' is called operator.

JavaScript supports the following types of operators:

arithmetic operators
comparison operator
assignment operator
conditional operator
JavaScript functions

It is a block of code, designed to accomplish a particular task. This eliminates the need to write code again and again. It helps the programmer to write module code. Before using any function we have to define it. To define a function in JavaScript, we write the keyword before the function, after writing the function name and parameter list, we close the statement in curly brackets.

So these were some JavaScript basics, there are many more things in it, which is too difficult to mention here. Since this post will be quite long, we will tell you below how you can learn them.

what is the use of JavaScript?

JavaScript is one of the most famous programming dialects on the planet. It is used to add computerization, speed, and ease to pages. Web designers use JavaScript to create complex pages. Let's explore what you can achieve using JavaScript.

Web improvement is one area where JavaScript is commonly used regularly. Since it is a client-pre-arranged language, it is used to create website pages. Most sites use it for checking.

JavaScript is also used in creating web applications. Several programming dialects were used in startups to promote innovative programs and PCs. Whatever, JavaScript took it to a higher level. Such applications have been created that hardly anyone would have thought of.

Hub JS is used to create web servers. Hub JS has many advantages, servers created by it work exceptionally fast and do not use buffering. Additionally, non-disruptive strategies are used that are linked to the opportunity cycle.

JavaScript is also used in creating mobile applications. The most important thing that only JavaScript can do is create applications without web references. With its help both Android and iOS applications can be created.

These are some of the areas where JavaScript is most commonly used. Apart from this, it is also used in making games and server applications. Similarly, there are many other functions that it can do but this is the important area.

how to learn javascript

Most people say that JavaScript is very hard to learn, and it is absolutely true. But if you are not interested in learning it, rather try to understand it first. So you will not have any problem in learning it. Below are some instructions that will help you learn JavaScript.

Essential Tools for Learning JavaScript

Code Editor – The first and most important tool is the code editor in which you can use Notepad++ or Atom. This is a completely free tool.

Web Browser - All of you must have a browser on your PC or laptop because with its help we will be able to access the created web pages. If you use Chrome, Mozilla, or Firefox, great. Remember to update your browser to the latest version.

Firebug Tool – It is a web browser extension that lets you do live debugging of HTML, CSS, DOM, XHR, and JavaScript of any web page or website. If you use Firefox you just have to install it from Google and if you use Chrome browser it is already available.

To use it in Chrome, you have to right-click with the mouse. After which you will see an option, click on it and the complete coding of the static page will be visible in front of you.

Resources for Learning JavaScript

To learn this programming language, you should know some resources from where you can easily start learning JavaScript. You can also use many paid resources to learn. But in this, we will tell you about some such online websites that are absolutely free and you have been given a complete guide to JavaScript.

Below are the names of five such websites from where you can easily learn JavaScript:

W3school
tutorial point
codecademy
javascript.info
freecodecamp

Apart from this, you can also learn JavaScript through YouTube videos. Apart from this, you will also have to follow them to learn coding.

Some advantages of JavaScript

By now you must have understood “What is JavaScript” and why it is used. So now as a student, you have some benefit from it, you should learn it.

Let us know what are some of the main advantages of JavaScript.

JavaScript is a very fast programming language, it can be used instantly in the client-side browser. Unless required by external documentation, JavaScript is not used for network calls to the backend server. It also does not need to be compiled on the client side, which is why it gets faster speed. Since it is the client side, the demand on the server is reduced. Due to this the server loads quickly.

It is used everywhere. There are so many free websites and tools available to learn JavaScript that learning and implementing it is not a problem for you.

It can be HTML, CSS, PHP, C++, or any other language. JavaScript can be inserted into any web page without protecting the file extension.

It supports all browsers and gives similar results in all. JavaScript syntax is quite simple and flexible.

Being an event-based language, JavaScript executes multiple code segments on certain events. In simple terms, a code segment is executed when the user clicks a button or hovers the mouse over an object.

Although it has many more advantages, these advantages are enough for a programmer. So hopefully you have understood why JavaScript is called the programming language of the future.

What is javascript