15 Reasons You Must Learn JavaScript

Amazingly, over 98.8 % of websites use JavaScript as a lightweight, cross-platform, and client-side coding language. It helps programmers build responsive websites and web applications that smoothly work with famous operating systems and devices.

JavaScript is employed to complete tasks like asynchronous communication and browser control. With Node.js, you can use it as a server-side scripting language, and by using open-source frameworks like HTML5 and CSS, you can even create games. So, JavaScript is a dynamic server-side coding language for building web applications.

Here are some main benefits of JavaScript:

1. JS is an interpreted programming language

Since JavaScript is an interpreted coding language, it requires no compilation process as the browser interprets JavaScript as HTML tags. JavaScript is an interpreted dynamic scripting language used along with HTML, which is also employed to add dynamic content to web pages. Also, its client-side mechanism provides numerous advantages over traditional CGI server-side scripts.

2. It is easy to comprehend

Beginners may find it hard to learn, but professional programmers affirm that JavaScript is easy to grasp as its syntax is not as complex as some other coding languages. It is easy to comprehend, for it functions as an interpreted language within the web browser.

3. JavaScript helps you find errors in the code

As JavaScript interprets the code line by line and the errors are indicated with a line number, it enables you to find the error, which you can correct instantly and test again.

4. It is an event-based Programming Language

JavaScript is an event-based programming language. It allows different code segments to be executed when a certain event occurs. For instance, when a user clicks a button or moves a mouse over an object, a code segment is executed in no time.

5. It is a procedural language

As a procedural language, JavaScript provides all the capabilities of a procedural language. It offers condition checking and branching facilities that can easily be executed on a web page.

6. It is a platform-independent language

Since JavaScript is a platform-independent language, any JavaScript-enabled browser can interpret JavaScript code even if this code is executed on different types of hardware.

7. It is supported by popular web browsers

Main browsers like Google Chrome, Internet Explorer, Opera, and Safari use JavaScript that allows users to easily access the web applications of their choice and easily access all the functionality of the websites.

8. JS requires no specific tool to perform

JavaScript can be written without using any specific tool or program, for it is an interpreted programming language. Just open a notepad and begin to write JavaScript.

Another unique feature of this language is that if you want to identify the mistakes in the code, you can take help from various

editors. These editors enable you to colourise and reformate the script that helps you find the mistakes and correct them.

9. It is supported by a variety of Frameworks and Libraries

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JavaScript is a preferred and desired coding language of programmers for its useful libraries and frameworks. These libraries help build large JavaScript applications without wasting precious time and energy. These popular frameworks are Angularjs, Backbone, Ember, Reactjs, DojoWidgets, DHTMLX, JQuery, and Bootstrap.

10. JavaScript facilitates faster processing

Since JavaScript is a server-side programming language and allows the user to execute the code on the user’s system without server interaction, which thus expedites the process. This fast processing keeps the users engaged and allows them to experience faster and richer browsing.

11. It provides information without reloading the web page

JavaScript delivers updated response data from the server that boosts the web application’s performance for users without reloading the web page. And to retrieve data, JavaScript employs the XMLHttpRequest API, which sends HTTP and HTTPS requests to the server and loads it in the script. Thus, the script updates the current web page based on the response received from the server.

12. JavaScript extends the Website’s performance

JavaScript enables programmers to create visual effects on the screen, calculate data and make web pages more interactive. That helps to extend the functionality of the web application without putting in the extra effort.

Developers can also enhance the websites’ performance by using third-party scripts without using additional tools and plug-ins. Also, it allows them to add out-of-the-box features to the web application.

13.JavaScript reduces the load on the server and saves users’ time

When a user sends a request, it usually takes time to process the request. However, JavaScript allows you to have a quick response. The reason is that JS is a server-side scripting language that processes the code on the user’s machine and does not interact with the web browser reducing the strain and load drastically. 
Hence, on account of the amazing characteristics of JavaScript, the developers are easily able to build large-scale websites without putting strain on the server.

14. JavaScript can help you catch data without an active internet connection

This unique programming language enables you to access any website even without having an active internet connection. It is so because JavaScript wor along with HTML5. By using such technologies, users can catch local data that keeps the web application responsive. Thus, it allows the applications to work as mobile apps.

15. It can easily work with other popular web technologies

Since JavaScript is both a client-side and server-side scripting language and functions with popular technologies like PHP, Perl, Java, CSS, and HTML5, programmers can access numerous devices and develop responsive websites.

Shortcomings of JavaScript

JavaScript has security issues when used for building large web applications and websites. Moreover, there is a problem of unpredictability as to when employed on different browsers, it can interpret it differently.
In addition, JavaScript can leave a negative impact on search engine ranking and visibility of the web application, which is why the widely used search engine Google, at times, fails to fully understand the client-side code written in JS.

Conclusion

To sum up, JavaScript is both a server-side and a client-side coding language that allows users quick access. It facilitates every code to run faster without contacting the server. Since JavaScript is a versatile and easy-to-implement scripting language, it is used in a variety of applications. As for the disadvantages, it has issues with security and the unpredictability of interpretation. However, JavaScript is still a dynamic, useful, and feature-rich coding language.