JavaScript for Web Design – Advantages and Disadvantages

This text discusses the nice and the dangerous factors of utilizing JavaScript in your web site designs. It factors out the areas the place JavaScript excels as an online primarily based programming language and likewise describes conditions the place its use can truly detract from the efficiency of a web site.

To begin with, JavaScript is a browser primarily based programming language that truly runs shopper facet. Which means any code that you simply write in JavaScript is delivered alongside together with your net pages and the scripts that you simply write truly run from inside the customers’ browser quite than immediately on the server that’s serving the net web page. There are conditions the place JavaScript is a superb answer for implementing neat options in an online design however there are additionally conditions the place utilizing JavaScript can damage your web sites efficiency. It’s my purpose on this article to explain one of the best methods to make use of JavaScript and learn how to circumnavigate the downsides of utilizing this versatile and highly effective scripting language.

JavaScript for Net Design – The Benefits

JavaScript is a superb answer to implement when validating enter types on the shopper facet. Which means if a consumer forgets to enter his title in a kind as an example a JavaScript validation operate can popup a message to let him know in regards to the omission. It is a much better answer that having a server facet validation routine deal with the error as a result of the server doesn’t should do any further processing. An asp or php routine may very well be written to realize the identical activity however the JavaScript wouldn’t permit the shape to be submitted until it was accomplished correctly within the first place, a way more sturdy answer!

One other space the place JavaScript excels is within the creation of dynamic results corresponding to rollover pictures and scripted slideshows, the place its use has grow to be commonplace. As a result of JavaScript runs contained in the shoppers browser it may be used to vary the looks of the customers display after the web page has been despatched by the server. This permits it to create some very spectacular dynamic picture results.

JavaScript for Net Design – The Disadvantages

One of many main draw backs to utilizing JavaScript is that it tends to severely bloat net pages. JavaScript code can shortly add as much as a whole lot of traces of code if you’re utilizing it to do something even remotely fascinating. That stated the issue of huge chunks of JavaScript code is definitely solved by storing the JavaScript code off into separate JavaScript supply information which have a .js extension. This cleans up your net web page code as a result of the JavaScript code is saved individually to the HTML web page itself, leaving a a lot cleaner and extra readable net web page.

Due to JavaScript’s tendency to bloat net pages it may be very detrimental to the search engine friendliness of your website online. It is because when a search engine arrives at your web site on the lookout for high quality content material and key phrases to find out what your web page is al about, the very last thing it needs to see is a whole lot of traces of JavaScript code. Once more, this drawback is definitely solves by neatly storing JavaScript code away in script information with a .js extension and linking to the script file in your HTML paperwork.


JavaScript is a function wealthy and helpful browser primarily based script that if used correctly can obtain some nice results and enhance the expertise for the top consumer. There are drawbacks to its use in that it tends to bloat net pages. The important thing factor to recollect is to get one of the best of each worlds through the use of JavaScript code in exterior script information. That means the code is separated out of your content material so that you get all the advantage of JavaScript performance however with out the opposed results of the related code bloating.