As a web developer I am sure you have asked yourself many times how to decide which web browser your project should support when it is using new HTML5 semantic elements, well today I will try to summarize -with this short article- a list of resources and suggestions that could help you with this task. After studying…
Today, I would like to share a useful code that could help when you need to know if a color is correctly entered in an input field. So, here is an example of how to validate an HTML hexadecimal color by using a regular expression in JavaScript. The regular expression to accomplish this task is:…
When you have a project created on Joomla CMS, you will need to protect your directories and files in order to avoid a possible attack or loosing information. During my time as a web developer and as a server admin in Government I learnt about what’s is a good configuration for setting permissions, for this…
Imagine the situation where you need to read a list of configuration permissions, these permissions are inside of an XML file called permisos.xml in a valid directory of your server. In this short article we will see how to read an XML file, parse it and create an array with all entries of this file. There…
When we are creating plugins or simple code in jQuery and there is a single or many plugin dependences among them, a common task is to implement a mechanism to validate if a jQuery plugin exists before running “depending” code, for example if we have this code and we have not included jqprint (a nice plugin…
In a previous post I explained what is the process for Saving a complex JSON object in a cookie by using jQuery (demo included in PHP). Now, I would like to add some related information about how to set an expiry date of a cookie using the same plugin (jQuery Cookies). First of all, it is important…
Today, I spent almost three hours to test and implement a mechanism to save a complex JSON object and get it to render in a HTML output,, for this reason I would like to explain what was the best easiest way that I found for saving my object. First, I would recommend you to be sure that…
Sublime Text 2 is my opinion one of most beautiful and useful editors for web developers, of course I really like Notepad++ (but this one, it doesn’t have a version for MAC OSX). A common task when we are creating awesome source codes is trim/delete trailing white spaces, because these are not good and even…
Today, when I updated a repository in git I realized that my co-workers -accidentally- broke a project (in CakePHP). What error was displaying? simple and a little confusing: Warning (2): Cannot modify header information – headers already sent by (output started at /app/config/database.php:1) [CORE/cake/libs/controller/controller.php, line 742] So, for solving this common PHP issue, I recommend…
When you need to know if an element exists in the DOM (Document Object Model), only uses this small code: <script type=”text/javascript”> (function($){ $(document).on(‘ready’, function(){ if( $(“element”).length ){ // Do something 🙂 } }); })(jQuery); </script> The length property returns the number of elements that match with our selector. For example, imagine that you have the…