Feeds

Google's JavaScript challenger gains better tools, performance

Dart enters beta with beefed up editor, compiler

Security and trust: The backbone of doing business over the internet

Hot on the heels of Microsoft's latest TypeScript release, Google has shipped the first beta SDK for Dart, its own JavaScript killer alternative web language, including bug fixes, performance enhancements, and an improved editor.

Like TypeScript, Dart is a language aimed at making it easier to develop large, complex web applications that are efficient, secure, and maintainable. It compiles into JavaScript, so it can run in any modern web browser, but its syntax is designed to ameliorate some of JavaScript's more glaring flaws.

With the beta release, the Dart compiler produces JavaScript code that is up to 3.7 times smaller than that produced by earlier versions, according to a blog post announcing the update. The compiler also runs between 8 and 20 per cent faster when tested against benchmark code.

Performance of the Dart VM – a standalone virtual machine that can execute Dart code natively - without compiling it into JavaScript – has also been improved. The new version includes full SIMD acceleration, and can execute benchmark code as much as 40 per cent faster than previous releases.

Some of the biggest improvements in the beta, however, are to the Dart Editor. The new version features a rewritten code analysis engine that can parse code and locate potential problems 20 per cent faster than before.

The beta editor includes a number of new code refactoring options and new "quick fixes" for automatically resolving code issues. It also features new code completion options, such as the ability to detect "camel case" – so you can type "gN" and the editor will guess that you want a method called "getNext," for example.

In addition, a new "pub deploy" command pulls together all of an application's code and assets and packages them into a directory for easy deployment to a web server.

The Dart team has made a number of other tweaks and enhancements to the language's libraries and tools, too – for a complete list, check out the formal release notes here.

This first beta brings the Dart language that much closer to a formal release, but as for when we can expect Dart 1.0, there's still no word. Google has hinted a few times that it plans to finalize the first release sometime around this summer, but as with so many projects from the Chocolate Factory, it hasn't firmly committed to any timeline.

Dart is open source software released under the BSD License. The beta Dart SDK, tools, documentation, and code samples can all be found at the project's homepage. ®

Security and trust: The backbone of doing business over the internet

More from The Register

next story
New 'Cosmos' browser surfs the net by TXT alone
No data plan? No WiFi? No worries ... except sluggish download speed
'Windows 9' LEAK: Microsoft's playing catchup with Linux
Multiple desktops and live tiles in restored Start button star in new vids
iOS 8 release: WebGL now runs everywhere. Hurrah for 3D graphics!
HTML 5's pretty neat ... when your browser supports it
Mathematica hits the Web
Wolfram embraces the cloud, promies private cloud cut of its number-cruncher
Google extends app refund window to two hours
You now have 120 minutes to finish that game instead of 15
Intel: Hey, enterprises, drop everything and DO HADOOP
Big Data analytics projected to run on more servers than any other app
Mozilla shutters Labs, tells nobody it's been dead for five months
Staffer's blog reveals all as projects languish on GitHub
SUSE Linux owner Attachmate gobbled by Micro Focus for $2.3bn
Merger will lead to mainframe and COBOL powerhouse
iOS 8 Healthkit gets a bug SO Apple KILLS it. That's real healthcare!
Not fit for purpose on day of launch, says Cupertino
prev story

Whitepapers

Providing a secure and efficient Helpdesk
A single remote control platform for user support is be key to providing an efficient helpdesk. Retain full control over the way in which screen and keystroke data is transmitted.
WIN a very cool portable ZX Spectrum
Win a one-off portable Spectrum built by legendary hardware hacker Ben Heck
Saudi Petroleum chooses Tegile storage solution
A storage solution that addresses company growth and performance for business-critical applications of caseware archive and search along with other key operational systems.
Protecting users from Firesheep and other Sidejacking attacks with SSL
Discussing the vulnerabilities inherent in Wi-Fi networks, and how using TLS/SSL for your entire site will assure security.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.