Sencha Inc. | HTML5 Apps

Blog / JavaScript

Toward Modern Web Apps with ECMAScript 6

Toward Modern Web Apps with ECMAScript 6

August 13, 2013 | Ariya Hidayat

ECMAScript, the official name for the language we all know as JavaScript, has enjoyed tremendous success over the last couple of years. With convergent standard support, performance boosts from modern JavaScript engines, as well as its foray into the server-side stack, ECMAScript has gained significant traction and redefined the scope of HTML5 applications. In this article, we’ll cover updates in ECMAScript 6.

5 Myths About Mobile Web Performance

5 Myths About Mobile Web Performance

August 01, 2013 | Michael Mullany

Recently we’ve heard some myths being repeated about mobile HTML performance that are not all that accurate. Like good urban myths, they sound compelling and plausible. But these myths are based on incorrect premises, misconceptions about the relationship between native and web software stacks and a scattershot of skewed data points. We thought it was important to address these myths with data that we’ve collected over the years about performance, and our own experiences doing optimizations of mobile web app performance.

UI Testing a Sencha App

UI Testing a Sencha App

January 10, 2013 | Arthur Kay

A few months ago, I wrote a post titled Automating Unit Tests that covered how developers could write unit tests for their business logic and validate their JavaScript syntax. Understanding these concepts is essential when building an enterprise application: bugs must be caught before changes are pushed into production or catastrophic consequences may follow.

Creating Native Applications with Sencha Desktop Packager

Creating Native Applications with Sencha Desktop Packager

November 26, 2012 | Ariya Hidayat

Sencha Desktop Packager is a new product, included with the Sencha Complete: Team bundle, which enables you to take your existing Ext JS web application and package it as a native desktop application. From here, you may deliver your application to your customers who are running Windows and Mac OS X

Automating Unit Tests

Automating Unit Tests

August 02, 2012 | Arthur Kay

One of the first questions I always hear when starting with a new client is “How can I build unit tests for my application?”

It’s obvious that many people understand the benefits of unit tests – developers want to minimize the number of bugs in their code and managers want to reduce the amount of time required to test an application before release. Although the concept of unit testing has existed for years, software teams are only now beginning to explore building tests for their Rich Internet Applications (RIAs).

Extensions, Extensions, Extensions

Extensions, Extensions, Extensions

July 24, 2012 | Ted Patrick

Extensions provide developers with valuable features beyond those that ship in Sencha’s frameworks, and are a very important part of the Sencha platform. At Sencha, we are investing to improve the ecosystem of extensions on our platform and I wanted to share an early look at our progress.

A Survey of JavaScript Timers on Mobile

A Survey of JavaScript Timers on Mobile

July 16, 2012 | Michael Mullany

Desktop browsers have had high resolution, high consistency JavaScript timers for the last few years. As a result, many web developers have become used to creating production-quality animations using zero-second callbacks via setTimeOut() and setInterval(). However, on mobile devices, this style of animation programming can have subpar performance and consistency – we wondered if it was due to poorer timer implementations. We researched the issue and found that while older Androids and iPods have noticeably poorer timer implementations than desktop browsers, the most recent Android and iOS tablets and phones seem to have mostly caught up.

Introducing Siesta: A Testing Tool for Ext JS

Introducing Siesta: A Testing Tool for Ext JS

December 14, 2011 | Mats Bryntse

Siesta is a new unit testing framework for Ext JS and other JavaScript code. Testing Ext JS, or any JavaScript-centric web framework, can be difficult because the available tools are not really suited for the task. Most popular web UI testing tools don’t offer enough help unless your application uses simple static HTML pages. This is where Siesta is different from the rest, because its top priority is Ext JS testing.

IE10 Preview: HTML5 First Look

IE10 Preview: HTML5 First Look

September 23, 2011 | Michael Mullany

Simply put, (and with the caveat that we were running on the notably overpowered developer preview hardware) the IE10 HTML5 experience is one of the best we’ve seen on any platform to date. After a decade of web neglect, Microsoft is back with a vengeance.