dart2js Questions

4

I am currently using the following package where the readme illustrates the following final bool loaded = await JsIsolatedWorker().importScripts(['test.js']); I am using the isolate worker package...
Rosebud asked 3/6, 2022 at 22:27

5

Solved

flutter doctor result [√] Flutter (Channel dev, 1.21.0-1.0.pre, on Microsoft Windows [Version 10.0.19041.388], locale en-US) [√] Android toolchain - develop for Android devices (Android SDK version...
Eau asked 23/7, 2020 at 5:18

3

Solved

I spotted several articles about Wasm being faster then JS [1, 2] I see the topic has been touched in this old (closed) issues [3, 4] and this seemingly abandoned discussion on google groups [5]...
Kronfeld asked 22/9, 2019 at 17:52

7

Is there a way to check if the script is running in the dart vm or dart2js? Maybe using mirrors API?
Jumna asked 1/2, 2013 at 21:10

0

main() async { print('Hello World'); await getAsyncString().then((hello) => print(hello)); } Future<String> getAsyncString() async { return 'Hello Async World'; } This is my code exa...
Trojan asked 5/4, 2019 at 21:45

1

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I would like to skip some specific code on pub build. example: Log.print('something ${StackTrace.current}'); I would like that the code above was not transpilled to JS in production.
Batish asked 27/2, 2017 at 13:49

2

Solved

Goal I would like to write a javascript library (framework), but need OOP and mixins. Was giving a go to typescript, but it doesn't support mixins (the handbook says it does, but the compiler/spe...
Very asked 19/1, 2016 at 0:58

2

Solved

dart2js probably generates .js.map, .js.deps and .precompiled.js. What's the purpose of them? and I donno why dart2js doens't remove them after finishing compile.
Monstrance asked 1/12, 2013 at 17:5

2

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I don't understand this behavior of dart2js code. I have this only in async function and only after compiling to JS. e.keyCode is equal 13 KeyCode.ENTER is equal 13 but (e.keyCode == KeyCode.EN...
Folkmoot asked 18/4, 2015 at 0:41

1

Currently, the Javascript generated by dart2Js converter is very unintuitive to debug and doesn't produce intelligible error messages. Is there a specific way that people use to debug Javascript c...
Boxberry asked 2/9, 2014 at 13:18

2

Solved

Is it right that the minimum / smallest compiled and minified JavaScript size of an AngularDart application (that does nothing) is about 650KB ? That is way too much for mobile applications and ev...
Dapple asked 17/6, 2014 at 1:55

2

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Let's say I have simple logger: void main() { var logger = new MyLogger(); logger.log("hello Dart"); } I want this code to run in the dev mode (VM checked mode) but i don't want it in my pro...
Lovieloving asked 13/6, 2014 at 14:50

1

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I would like to call a Dart function from Javascript. I would like to compile a Dart script containing a Dart function using dart2js (version 1.1.3) and then load the generated .js file into a Jav...
Aminaamine asked 21/2, 2014 at 13:52

1

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My dart2js compiled Chrome Packaged App crashes with Uncaught Error: Instance of 'UnknownJavaScriptObject' and ReferenceError: DartObject is not defined. The full stack trace follows Uncaught Err...
Celanese asked 1/2, 2014 at 0:6

4

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I'm trying to better understand dart's effect on performance. On the dart website, their benchmarks show that Dart code compiled to Javascript is faster than just Javascript. How is this possible? ...
Ureide asked 5/1, 2014 at 3:42

2

I have a dart application using Polymer.dart, i replace the dart.js file by the boot.js (in my index.html), an now i want to deploy this application in order to have a working javascript one. But,...
Kilmer asked 24/8, 2013 at 14:27

3

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I have this code: // main.dart import "package:angular/angular.dart"; main () => ngBootstrap(); I make dart2js --minify --out=main.dart.js main.dart Then i have main.dart.js with size 2.6 Mi...
Irretentive asked 21/11, 2013 at 11:31

4

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Consider the following dart web app: import "dart:html"; // assume this is a custom library hosted somewhere on github, i.e. // there is a pubspec.yaml entry // // dependencies: // my_hello: // g...
Orban asked 6/3, 2013 at 8:32

3

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Is it possible to convert a javascript object or array back to native dart Map and/or List? I'm trying to get a manifest file returned from javascript as Object and want to convert it to a Dart Map...
Clammy asked 18/12, 2012 at 19:18

1

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In my application I generate big dart classes. Right now I compile them on the server, which takes CPU time. It would be much better to compile the Dart code within the browser. The code is then lo...
Barbarian asked 27/9, 2013 at 16:43

2

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I'm doing ZigZag encoding on 32bit integers with Dart. This is the source code that I'm using: int _encodeZigZag(int instance) => (instance << 1) ^ (instance >> 31); int _decodeZigZ...
Mckenney asked 2/7, 2013 at 14:15

1

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suppose I want to create a wrapper for a javascript API such as localStorage that adds some additional functionality like automatically journaling changes and syncing it to a server. Dart already h...
Koheleth asked 26/5, 2013 at 9:39

3

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I have the following dart code: $ cat helloworld.dart main() => print('Hello world!'); $ The javascript code generated by the dart compiler for the above code is as follows: $ cat helloworl...
Jackstraw asked 11/1, 2012 at 7:7
1

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