In this blog entry I will be describing the purpose of
JavaScript as well as its key features. The final part of the task I will be
describing the purpose of jQuery as a development tool.
JavaScript
JavaScript is a scripting language which is used to add
functionality to a website. Not only this but JavaScript is also used to edit the layout of the web page for example a drop box. Without
JavaScript web pages will not have the interactivity and include the layout features
that make the webpage interactive. An example of what JavaScript can be used for menus or navigation tabs. JavaScript is also not a full blown programming language. JavaScript is also different to the other programming language which is Java. Java is
used for programming very complex programmes such as...
Validation of
JavaScript
JavaScript also validates anything written on a web page.
For example if an email is written and a main character is missing such as “@”
then JavaScript code can be written to recognise this and validate the email, It will then not accept
the email and notify the user that there is a problem.
JavaScript is supported
by some of the web browsers like the 4 different web browers listed below.
> Internet Explorer
> Safari
> Google Chrome
> Firefox
JQuery
JQuery is a development
tool that is used in the JavaScript library which allows shorter and more
accessible lines of JavaScript to be opened. JQuery just goes into the JavaScript
library and a short line of code represents jQuery unlike JavaScript where
there are many lines of words that represent it. As jQuery is shorter than javascript code time can be saved by not repeating the code. It was mainly designed to make JavaScript easier to code.
Overall less code has to be written when jQuery is being used within the website and another benefit is that there will be fewer errors because there is less repetition.
Overall less code has to be written when jQuery is being used within the website and another benefit is that there will be fewer errors because there is less repetition.
References
Whats so good about jquery?
02/05/2014
http://bit.ly/1kB6X4o
How jquery works?
02/05/2014
http://bit.ly/1pe4lcy
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