Have you seen how a project like Angular is versioned? You have maybe noticed when a brand-new release of that framework is created they release it with three numbers, e. g. Angular 5.0.0, now the question is: what those three digits mean? The answer is simple: they are using a system called Semantic Versioning or mostly…
This is probably the simplest way to capture the key that the user pressed and execute an action (in this case just a simple console.info). (function() { function customAction() { console.info(“You have pressed an ‘a’ in your keyboard”); } $(window).on(‘keypress’, function(event) { console.log(event.keyCode); // keyCode te da el código de la tecla que presiones if (event.keyCode…
An easy way to get the file names of an input form field: (function($) { var files = $(‘#myInputFile’)[0].files, items = []; for (var i = 0; i < files.length; i++) { items.push(files[i].name); } // Getting file names in JSON array format JSON.stringify(items); })(jQuery);
Imagine you have some strings and as a requirement of one your clients, you need to clean the strings by deleting all the special characters, so here are two regular expressions that could help you to start your cleaning, of course, the second one is more personalizable, but, be my guest and choose the one…
When you work with Dojo in a portal that is already in production mode, one of the first question you want to answer yourself is: what is the version of Dojo do I have available for using? Well, to answer that, just open you web browser console and run this small JavaScript code: var v =…
The problem: 1) Imagine you have following array in JSON var data = [ { “title”: “Fine Fillers Treatment and Clay De-Activation Agents”, “topic”: “PHP”, “date” : “2014-01-25T01:32:21.170Z”, “url”: “http://www.alex-arriaga.com/session-1-cakephp-framework-for-beginners-in-spanish/” }, { “title”: “How to configure session factory to connect to a DB2 datasource with Hibernate”, “topic”: “Java”, “date” : “2014-02-12T01:32:21.171Z”, “url”: “http://www.alex-arriaga.com/how-to-configure-session-factory-to-connect-to-a-db2-datasource-with-hibernate/” }, {…
Hi friends! Last week someone of the community asked me for how to do debugging of JavaScript in his web applications and web sites, to answer that question I have created a little video (40 minutes, more or less) to give you the big picture about the great tools for developers that are available in…
This is a little tip for today: sometimes, you don’t have access to know what version of jQuery is loaded in a website or web application, so you can use the Firebug console to know what version is actually loaded. Just, type one of the next lines and you will obtain that data. Both major…
When you are creating a web project and you need to send an email you could choose between two options: Server-side solution. I consider this is the best way to send an email because with this solution you can customize all as you need like: HTML, styles, attachments, etc. but it is more complicated because…
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:…