Javascript is a programming or scripting language primarily used for client-sided programming in web browsers. It can also be used as a server-side programming language but this is generally used less often. Javascript was originally created by Netscape for their browser Netscape Navigator, and is now an implementation of the ECMAScript standard. It is typically used in web browsers for form validation, floating navigation, AJAX and other nifty things to make web pages more interactive.
I use Yahoo’s YUI Compressor to minify Javascript and CSS files. Recently I got an error message when attempting to minify a Javascript file: this post looks at the error message and how to use it to work out where the error occurs.
Last week I wrote how to load JSON data with jQuery, PHP and MySQL, noting at the end that there can be some caching issues which may or may not be a problem depending on your implementation. I look at this here and a possible solution.
Almost a year ago I showed how to have a password field show plain text with a default plain-text value but then be an actual password field when the user clicks into it, implementing this with jQuery. Just recently someone asked in the comments on that page how to do the same thing if you cannot modify the HTML itself, so show how to do that in this post.
Some time back I posted how to get and set form element values with jQuery just showing the HTML and Javascript needed to do so but without an actual demo. Someone asked for some demos of these yesterday so I present these here.
Last month I posted how to get an element’s position relative to the document with jQuery and in this post show how to do the same thing but with native Javascript without the use of a 3rd party library.
Javascript’s setTimeout function executes code after a specified amount of time but can only handle constant parameters. This post looks at how to pass variable parameters to setTimeout.