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Introspecting js proxy object of js map -> dart Map #12997

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DartBot opened this issue Sep 3, 2013 · 6 comments
Closed

Introspecting js proxy object of js map -> dart Map #12997

DartBot opened this issue Sep 3, 2013 · 6 comments
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area-core-library SDK core library issues (core, async, ...); use area-vm or area-web for platform specific libraries. closed-obsolete Closed as the reported issue is no longer relevant library-js type-enhancement A request for a change that isn't a bug

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@DartBot
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DartBot commented Sep 3, 2013

This issue was originally filed by bendera...@google.com

Often when working with js apis like chrome.* in a chrome extension it is necessary to convert from a js Map/Object to a dart Map. Currently there isn't an easy way to do so which makes it hard to know what has been returned or to convert a js map into a typed dart object. I have managed to get a solution working using js.context.Objects.keys but it seems like this is functionality that should be provided by jsinterop to compliment js.map().
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DartBot commented Sep 3, 2013

This comment was originally written by @a14n

You can have a look at JsObjectToMapAdapter ( https://github.com/dart-lang/js-interop/blob/master/lib/src/wrapping/js/object_to_map_adapter.dart and https://github.com/dart-lang/js-interop/blob/master/test/js_wrapping/browser_tests.dart#L322). It will allow to handle a proxy like a Map :

  Map<String, dynamic> map = new JsObjectToMapAdapter.fromProxy(myProxy);

In dart:js there's nothing like this for now ( if https://chromiumcodereview.appspot.com/23291005/ goes in you will be able to use : myJsObject.asDartMap() to get a Map )

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DartBot commented Sep 3, 2013

This comment was originally written by bendera...@google.com

Oh I had not found the adapter, is it in the interop docs somewhere? I should be able to get away with this for now.

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DartBot commented Sep 3, 2013

This comment was originally written by @a14n

There's no doc on js_wrapping for now ( a pull-request is waiting for a lgtm - dart-archive/js-interop-deprecated#103 )

@larsbak
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larsbak commented Sep 4, 2013

Added Area-Library, Triaged labels.

@floitschG
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Removed Type-Defect label.
Added Type-Enhancement, Library-JS labels.

@justinfagnani
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We'll be adding a similar adapter for dart:js JsObject as well.

Set owner to @justinfagnani.
Added Accepted label.

@DartBot DartBot added Type-Enhancement area-core-library SDK core library issues (core, async, ...); use area-vm or area-web for platform specific libraries. library-js labels Oct 30, 2013
@kevmoo kevmoo added type-enhancement A request for a change that isn't a bug and removed priority-unassigned labels Feb 29, 2016
@matanlurey matanlurey added the closed-obsolete Closed as the reported issue is no longer relevant label Jun 19, 2018
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area-core-library SDK core library issues (core, async, ...); use area-vm or area-web for platform specific libraries. closed-obsolete Closed as the reported issue is no longer relevant library-js type-enhancement A request for a change that isn't a bug
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