Introduction to JavaScript:
JavaScript is a high level, light weight, flexible, powerful and object-oriented programming language. JavaScript enables interactive web pages and is an essential part of web applications. It is very easy to implement because it is integrated with HTML.
JavaScript was invented by Brendan Eich in the year 1995 and became an ECMA standard in 1997. JavaScript and Java both are completely different languages in the design and concept.
JavaScript is the most popular and high demand programming language around the world. It helps you to develop great front-end as well as back-end software’s using JavaScript frameworks like jQuery, Node.Js, etc. It is easily available and supports all web browsers to learn.
JavaScript includes a standard library of objects such as Array, Date and Math. and a core set of language element such as operator, control structures and statements. JavaScript can be used for Client-side and Server-side developments.
Client-side: JavaScript extents the core language by supplying objects to control a browser and its Document Object Model (DOM). A client-side extensions allow an application to place elements on an HTML from and responds to user events such as mouse clicks, form inputs, etc.
Server-side: JavaScript extents the core language by supplying objects relevant by running on JavaScript server. A server-side extensions allow an application to communicate with database.
Hello World Example in JavaScript:
<html>
<head>
<title>My First JavaScript code!!!!</title>
<script type="text/javascript">
alert("Hello World!");
</script>
</head>
<body>
</body>
</html>
Applications of JavaScript:
JavaScript is one of the most powerful and object-oriented programming language. And it is used in various fields of applications. The some of the main applications of JavaScript are as follows,
Web Development: JavaScript is used to create amazing and beautiful websites. It is used in both front-end and back-end development. It makes website to look more amazing and functional with creative and useful plugins design for users in a website using JavaScript frameworks.
Web Applications: As the technology upgrades, websites and web applications are improved their functions. JavaScript is one of the most useful programming languages to make web applications. It uses Application Programming Interfaces (APIs) to provide more power to the code of a web application.
Mobile Applications: JavaScript is not just used for developing web applications but also used for developing mobile applications. The frameworks like React Native, you can develop mobile applications.
Games Development: JavaScript is also used in games applications. The combination of HTML 5 and JavaScript makes it more popular in game development.
Server Applications: JavaScript is also used for server applications using Node.Js as its one of the most powerful for the client to server side.
Machine Learning: JavaScript also used in machine learning. Its ml5.Js library cab be used in web development using machine learning.
Also Read: Top Computer Science Engineering Programming Languages
JavaScript Frameworks and Libraries:
There are many useful JavaScript frameworks and libraries are available:
Angular Js: Angular Js is one of the popular and robust JavaScript framework. It is use to create progressive web pages as it also supports an extensive ecosystem which includes four different data libraries. It is also used to develop single page applications.
React Js: React Js is one of the most famous JavaScript library. It is used to create the dynamic user interfaces of a website for higher traffic. It is simple and easy to use and powerful while using in a web development.
jQuery: jQuery is one of the popular and oldest JavaScript framework. It is an open-source JavaScript library which is used to create web applications. It has cross-platform support which intends the client-side HTML scripting.
Vue.Js: Vue.Js is an open-source JavaScript framework which is used to develop to improve the front-end framework such as Angular and React. It is easy to learn and has simple documentation.
