Web Designing Using JavaScript – Merits and Demerits

Alexander Prokopenko
Alexander Prokopenko Chief Technical Officer
2 minutes to read

Without a doubt, JavaScript is one of the most versatile, effective and simple languages used for high-end functionality and user experience in websites. It offers many benefits, including calculation data on web pages, incorporating screen visual effects for smooth processing and extended functionality to websites designed with different scripting languages, to name a few. Web designing and development through this language is inexpensive – it also makes a website more user-friendly and offers flexible options to developers and designers as well.

However, although there are situations where no other platform can offer solutions parallel to JavaScript, there are also situations where choosing JavaScript can potentially harm website performance. In order to understand such circumstances, it is best to carefully weigh up the merits and demerits in order to determine when to opt for this language.


Client Side Execution

JavaScript loads and can be executed quickly because the browser itself takes care of all the processing. JavaScript is launched and executed on its own by the browser instead; it does not wait for the web server to reply to its requests, thus saving strain and bandwidth on the web browser. Some JavaScripts can be saved in web pages, which can then be executed even if the PC doesn’t have an internet connection.


One of the biggest advantages of using JavaScript is that it offers greater interactivity to the website, compared to any other scripting language. From web page text and drop-down menus to chat rooms and online games, JavaScript offers flexibility that helps coding small as well as large interactions.


Although learning JavaScript requires effort and takes time, it is an inexpensive language to code for web development. This language doesn’t need any special editors or compilers to work with, as you can easily write code directly in simple text editors like Wordpad or Notepad. Developers can even write the codes straight into a website’s HTML code and can upload and launch it without using any specialized software.


In order to view JavaScript, no special software is required as all the major browsers like Google Chrome, Mozilla Firefox, Internet Explorer, etc. have built-in extensions for JavaScript. Since it also offers cross-browser support, the interactivity of the website will be the same, regardless of the internet browser being used.


Variation in Representation

JavaScript is rendered differently in different engines, resulting in inconsistent functionality. Although the latest versions have been geared to fill this gap, variations still exist in some cases.

Lack of Security

Once the JavaScript snippets are added to the web pages, they are immediately executed on the client servers and can develop risks for the user’s system. While measures have been taken against this issue by modern web standards, malicious code can still be executed, abiding with the restriction set. This is one reason why people avoid or disable JavaScript.

Expanding Codes

When JavaScript is used for web designing, it can cause the web pages to expand to some degree. The code can be extended to several lines, which is why JavaScript codes are kept in a different source file for a cleaner and readable web page.

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