Skip to main content

Breaking Change: parseInt to become int.parse

Yesterday, Lasse Nielsen, an engineer on the Dart team, wrote to the Dart mailing list about a new breaking change coming to the Dart core libraries. The parseInt and parseDouble from dart:math will be replaced by int.parse and double.parse, respectively.

Lasse writes:

Greetings all.

We are removing parseInt and parseDouble from the dart:math library, and making them static methods called "parse" on the int and double classes.
The original reason, from long ago, for putting them in Math was that int and double were interfaces, and couldn't contain static methods. Now that we are converting all interfaces to abstract classes, we will move those functions where they belong.

The dart:math parseInt/parseDouble functions will still work, but they will be removed in about a week.

The functions now have documentation too! Please do report if it is confusing or misleading in any way.

Cheers
/L


A good discussion then followed with suggestions for creating named constructors, or if parse should be moved to num. You can follow along at the Dart mailing list for more. Thanks for trying Dart!

Popular posts from this blog

Dart in 2016: The fastest growing programming language at Google, 2nd fastest growing in TIOBE Index

Dart was the fastest growing programming language at Google in 2016 with millions of lines of code written. It also made it to TIOBE Index Top 20 this month (see TIOBE's methodology ). It takes time to build something as ambitious as Dart and, in some ways, Dart is still in its infancy. But we're glad the hard work is starting to pay off. Many thanks to our amazing community! We're going to celebrate by ... releasing 1.22 next week (as per our usual 6 week release schedule).
Read more

AngularDart is going all Dart

Until now, the multiple language flavors of Angular 2 were written as TypeScript source, and then automatically compiled to both JavaScript and Dart. We're happy to announce that we’re splitting the Angular 2 codebase into two flavors – a Dart version and a TypeScript/JavaScript version – and creating a dedicated AngularDart team. This is amazing news for Dart developers because: The framework will feel more like idiomatic Dart. It will make use of Dart features that couldn't work with the TypeScript flavor. It will be faster. This is equally great news for our TypeScript and JavaScript developers, by the way. Cleaner API, performance gains, easier contributions. Read more on the Angular blog. Angular 2 for Dart is used by many teams at Google. Most famously by the AdWords team, but many other Google teams build large, mobile-friendly web apps. Some of the top requests from these teams were: make the API feel like Dart, provide a faster edit-refresh cycle, and
Read more

The new AdWords UI uses Dart — we asked why

Google just announced a re-designed AdWords experience. In case you’re not familiar with AdWords: businesses use it to advertise on google.com and partner websites. Advertising makes up majority of Google’s revenue, so when Google decides to completely redo the customer-facing front end to it, it’s a big deal. The Dart team is proud to say that this new front end is built with Dart and Angular 2. Whenever you asked us whether Google is ‘even using Dart for anything,’ this is what we had in mind but couldn’t say aloud. Until now. We asked Joshy Joseph , the primary technical lead on the project, some questions. Joshy is focusing on things like infrastructure, application latency and development velocity, so he’s the right person to ask about Dart.   Q: What exactly did we launch on Monday? It’s a complete redesign of the AdWords customer experience that is rolling out slowly as a test to a small initial set of advertisers. The most noticeable thing is probably the Material
Read more