Latest Screencasts (page 2)

Showing validation errors inline as the user is filling out the form can lead to a better use experience. Learn how to do this using the Client Side Validations gem.

  CoffeeScript is now going to be a default installation with Ruby on Rails. So, I installed CoffeeScript and NodeJS and have been playing with it for the last hour or so. Here are the basics you need to know to use CoffeeScript including functions, arrays, hashes (objects), control functions (if, else, unless) and loops. [...]

Are you testing your JavaScript? Learn how to add specs using Jasmine. This episode also covers jQuery integration with jasmine-jquery.

Wouldn't it be great to build an iPhone application without learning a line of Objective-C? Wouldn't it be great to put to use the skills you've already honed over the years as a web developer? In this screencast we'll show you how to build an iPhone app using JavaScript. We'll...

To mark AJAX's birthday on 18th March, we've put together a screencast to show you how to create your very own AJAX-updating countdown website for the big day. We're using Haml, Sinatra and jQuery to do this and recommend you look at our introduction videos if you're not familiar with...

The default Delicious Bookmark Button is obtrusive and broken when you switch off JavaScript. We show you how to improve and build an unobtrusive one with jQuery. Links Default Delicious Save Buttons What you'll learn How to build an unobtrusive JavaScript Delicious Bookmark Button with jQuery How to url encode...

Overview jQuery has an arsenal of tools for you to include dynamic data in your web application. There are many different techniques which may suit one situation over another. In this screencast we'll show you several ways that jQuery can load information off the web, which you can start using...

The new pushState function in JavaScript allows us to change the full URL with AJAX. This means the back button, reloading, and bookmark support can be easily added.

This video demonstrates how to build a countdown timer with the setInterval function in Javascript, a text field, and jQuery to update your text field.

There are a number of libraries to help create graphs. Here I show how to integrate Highcharts into a Rails app.