What is Javascript used for?
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Software Engineer
16 Dec

What is Javascript used for?


We need to know, "What's javascript and its uses"?There are many javascript tutorials for beginners to advanced ones and one can learn Javascript online. Below describes what JavaScript is, what it's used for, what are its pros and cons, why you should use it as a programming language, and what is the future of Javascript.

What is JavaScript?

JavaScript is the world's most popular programming language. It is a text-based programming language used both on the client and server that enables web pages to be interactive. HTML and CSS are languages that add structure and style to web pages, while JavaScript provides web pages with interactive, engaging elements.

All major web browsers have their JavaScript engine for running code on the user's device. Common examples of JavaScript you use every day include Amazon's search box, embedded videos from the New York Times that summarise news, and Twitter feed updates.

Including JavaScript improves the user experience of your website by transforming your website from static pages to interactive pages. In summary, JavaScript adds behavior to web pages.

Javascript also describes Javascript operators, including assignment, comparison, arithmetic, bitwise, logical, string, ternary, and more.JavaScript operators are symbols used to perform operations on operands.

Javascript Uses:

JavaScript is used in web-based applications and most web browsers. But JavaScript is also used in non-web software, servers, and embedded hardware controls. Here are some basics where JavaScript is used.

1. Add interactive behavior to your web pages

Javascript helps users to interact with web pages. The possibilities of JavaScript in websites are almost without any limit - these are just a few examples:

Click a button to show or hide more information

Change the color of the button when the mouse is over the button

Zoom in or zoom the image out

Timer or countdown on the website

Audio and video on the web page are played

Display animation

2. Building web and mobile apps

Various JavaScript frameworks are used by developers to develop and build web and mobile apps. A JavaScript framework is a collection of JavaScript code libraries that provide ready-made code that developers can use for everyday programming functions and tasks. It acts like a framework used to make websites and web applications.

Popular front-end frameworks of javascript include React, React Native, Angular, and Vue. Many businesses use Node.js, a JavaScript runtime environment based on Google Chrome's JavaScript V8 engine. Some famous examples are Paypal, LinkedIn, Netflix, and Uber.

3. Creating a web server and developing server applications

Beyond websites and apps, developers can also use JavaScript to create simple web servers and Node.js to develop the backend infrastructure.

4. Game Development

Of course, you can also create browser games with JavaScript. This is a good way for beginners to improve their JavaScript skills.

Javascript Pros and Cons:

1. Pros:

Simplicity: JavaScript is easy to understand and easy to learn. Users and developers both will find the Javascript syntax simple. Moreover, it is very easy to implement and it saves web developers a lot of money when creating dynamic content.

Fast Speed: JavaScript executes on the client side that's why it is very fast.

Versatility: It refers to many skills and can be used in a wide range of applications.

Interoperability: JavaScript integrates seamlessly with other programming languages, so many developers prefer to use it to build a wide variety of applications. Her web page or script in another programming language can include it.

Server Load: Javascript is client-side hence, Data validation can be done within the browser itself rather than being forwarded to the server. No need to reload the whole website if there is a deviation. Only the selected area of the page is refreshed by the browser.

Regular Updates: Javascript is annually updated by ECMA.

2. Cons:

No debugging: Some HTML editors allow debugging, but not as effectively as C or C++ editors. Also, the browser doesn't show any errors, making it difficult for developers to identify the problem.

Client-side security: Users can see JavaScript code. It can be misused by others. These actions may include anonymous use of source code.

Inheritance: Multiple inheritances are not supported by Javascript. Only one inheritance is supported. This property of object-oriented languages may be required in some programs.

Browser Support: JavaScript is interpreted in different ways by different browsers. Therefore the code should be run on different platforms before release.

Why use Javascript over other programming languages?

There are many reasons why web developers use Javascript over other programming languages.

Javascript is the most popular language.

It is easy to learn.

It is the only programming language near the web browser.

Javascript Future:

Yes, JavaScript will be in high demand in the future. JavaScript is a very popular programming language used to build apps, websites, video games, and web servers. JavaScript integration improves the web experience and provides a smooth user experience. The ubiquitous nature and adaptability of JavaScript are likely to continue, ensuring long-term prosperity.


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