JavaScript is the Programming Language for the Web browsers. JavaScript has the power to update and change both HTML and CSS. JavaScript can calculate, manipulate, validate data, and so on.
JavaScript is getting more popular and widely used programming language its support on many like front-end, back-end, hybrid apps, embedded devices, and much more. Some big companies like Netflix, Walmart, and PayPal using Javascript for their intra Application. JavaScript was first developed by NetScape in 1995.
A Javascript program example
1. <script type="text/javascript">
2. function Showmsg() {
3. alert(" Hello, I am a small Javascript Programe! ");
4. }
5. </script> What Can We Do with Javascript?
Before JavaScript used only for developing webpages with HTML and CSS but nowadays Javascript uses for web/ mobile applications, command-line tools, and for games because of big community support and big companies investment.
How does the Javascript code run?
Javascript mainly designs to run on browsers every browser has a javascript engine that executes Javascript code. The main work of a javascript engine to convert the high-level code into machine-readable code because of javascript code in the form of human-readable.
Javascript has two types of categories
1. Primitive / Value types
2. Reference type
In the primitive types of categories has String, Numbers, Boolean, Undefined, and NUL. And in the reference type category has Array, Object, Functions.
What is the difference between jquery and Javascript?
Jquery is an open-source javascript library. Jquery makes javascript programming much easier like DOM, Animations, Event handling, Ajax. Jquery makes relly simple Javascript you can code less and get more results. jQuery has changed the way that millions of people write JavaScript because of its versatility and extensibility.
What is Node in javascript?
Node js is a cross-platform Javascript runtime environment. Node js use for using fast and scalable real-time network applications such as chat, news feeds, and web push notifications.
Features of Node.js
Node.js also provides a library of various JavaScript modules which helps to simplify the development of web applications using Node.js.
- Fast − with the JavaScript Engine, Node.js library is very fast in code execution.
- Asynchronous and Event-Driven − Node.js helps the server to get a response from the previous API call.
- Single-Threaded but Highly Scalable
- With No Buffering − Node.js applications never buffer of any data. These applications simply output the data in chunks.
- Node.js License − Node.js coming with the MIT license
JSON in Javascript
JSON or JavaScript Object Notation is a format for structuring data and it is a lightweight data-interchange format, language-independent, “self-describing” and easy to understand. The JSON syntax comes from JavaScript object notation syntax and the JSON format is text only. The code for reading and generating JSON data can be written in any programming language.
An example of JSON structure in Javascript
{
"employees":[
{"firstName":"John", "lastName":"Doe"},
{"firstName":"Anna", "lastName":"Smith"},
{"firstName":"Peter", "lastName":"Jones"}
]
}
What makes Javascript unique from other languages?
It’s the only programming language of this kind that can be understood by web browsers. And it gives a powerful client-side experience.
- Full integration with HTML/CSS.
- Javascript works pretty fast on the browsers
- Simple human-readable code.
- Support by all major browsers and enabled by default.
- Javascript also using for developing mobile application not only for web
- Modern JavaScript is a safe programming language also the most popular language
- It’s a fun language to learn
- It is really easy to debug and test
Reasons to learn JavaScript In 2020
JavaScript a mainstream language that makes it easy to search for bugs in their code. JavaScript like the backbone of a web component example, drop-down menus, modular windows, form validations, and contact structures. It is additionally used to make things like activities, video players, animation, landing pages, and content and intelligent maps. JavaScript is a beginner user-friendly programming language and everyone can begin learning with no past experience. javascript is all over in today’s world. JavaScript isn’t just used to make web components and websites. It can be used to manufacture program based games and, with the specific package of frameworks, versatile applications for various working frameworks. javascript controls every browser and everybody can utilize it
Conclusion
Personally I like to play with Javascript its really fun to play. Javascript is an easy programming language with its dynamic properties it’s run fast on the browsers. The JavaScript code is executed on the client-side instead of the servers thus it saves bandwidth and load on the web server and it runs faster on browsers. Javascript has the power to enhance the functionality of web pages, if you need a website with some great features like animations, some clickable functions, auto-complete, landing content or form validation then you will need javascript.
