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Nullish Coalescing Operator #382

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jmattheis opened this issue Apr 15, 2022 · 0 comments
Closed

Nullish Coalescing Operator #382

jmattheis opened this issue Apr 15, 2022 · 0 comments
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enhancement
Milestone
ES6 (and beyond)

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@jmattheis
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jmattheis commented Apr 15, 2022 •
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Related to #350, it would be cool if goja would support the nullish coalescing operator.

const maybeUndefined = undefined;
const withDefault = maybeUndefined ?? 'myDefault';

Typescript transpiles this to the following:

const maybeUndefined = undefined;
const withDefault = maybeUndefined !== null && maybeUndefined !== void 0 ? maybeUndefined : 'myDefault';

Keep up the good work (:
@dop251 dop251 added this to the ES6 (and beyond) milestone Apr 22, 2022
@dop251 dop251 closed this as completed in 160b8c5 Apr 24, 2022
Gabri3l pushed a commit to mongodb-forks/goja that referenced this issue Sep 1, 2022
@dop251 @Gabri3l
Implemented nullish coalescing operator (??). Closes dop251#382.
fa83eb8 
(cherry picked from commit 160b8c5)
@imiric imiric mentioned this issue Feb 24, 2023
Closed
Gabri3l added a commit to mongodb-forks/goja that referenced this issue Mar 15, 2023
@Gabri3l
BAAS-19768: update goja to latest March 2023 (part 2) (#79)
574e540 
* Fixed panic in newArrayFromIter when the iterator is already closed. Fixes dop251#375
* Fixed panic when parsing invalid object property keys. Fixes dop251#376.
* Fixed accidental shadowing in the else branches of type assertion
* Fixed defineProperty("length") for arrays. Improved detection of non-standard array configurations. Upgraded tc39 tests.
* Return true values of struct fields or reflect slice elements, rather than pointers to them. Closes dop251#378.
* Upgraded dependencies. Closes dop251#380.
* Implemented exponentiation expressions. Closes dop251#381.
* Enabled tests that use ** operator. Some array fixes as a result.
* Implemented nullish coalescing operator (??). Closes dop251#382.
* Implemented `{Array,String,%TypedArray%}.prototype.at` (dop251#384)e7c2872c8)
* Fixed callee expressions in optional chains. Fixes dop251#385.
* Do not use fmt.Sprintf() for plain error strings. Fixes dop251#388.
* Implemented 'copy-on-change' mechanism for inner compound values. Fixes dop251#403.
* Fixed objectGoReflect equality. See dop251#403
* Don't clear interrupt until the stack is empty (dop251#405)
* test: skip Promise based tests
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