Intent to Ship: Class Static Initialization Blocks

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Matthew Gaudet

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Aug 13, 2021, 4:54:55 PM8/13/21
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Intent to Ship: Class Static Initialization Blocks


Class Static Initialization blocks allow JavaScript programmers to run pieces of code during class definition. 


class G {

 static {

   try { this.a = foo(); } catch { this.a = “default” }

 }

}

 

This proposal is at Stage 3 in the TC39 process (https://tc39.es/process-document/) 



Meta Bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1670018 

Ship Bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1725689


Proposed Standard: https://github.com/tc39/proposal-class-static-block


Proposal Repository: https://github.com/tc39/proposal-class-fields


MDN: Not yet written I believe. 


Platform coverage: all platform, pref on by default


DevTools Bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1712173


Other Browsers: Shipping by default in Chrome 91 (Intent to Ship is here: https://groups.google.com/a/chromium.org/g/blink-dev/c/pzy_Z3AwmaY/m/FeXzN3hnAwAJ) 


Testing: Test262 Tests: https://github.com/tc39/test262/pull/2968




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