Interactivity API: Prevent each directive errors and allow any iterable #67798
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Flaky tests detected in 2470f6b. 🔍 Workflow run URL: https://github.com/WordPress/gutenberg/actions/runs/12260682362
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sirreal
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sirreal
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[Type] Feature
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sirreal
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Dec 11, 2024
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| eachIterator: { | ||
| [ Symbol.iterator ]() { | ||
| const vals = [ 'implements', 'iterator' ]; | ||
| let i = 0; | ||
| return { | ||
| next() { | ||
| return i < vals.length | ||
| ? { value: vals[ i++ ], done: false } | ||
| : { done: true }; | ||
| }, | ||
| }; | ||
| }, | ||
| }, |
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I'll admit, this is a bit esoteric, but it doesn't work in the iAPI but it seems like it could. I suspect its iterator is lost in the proxies.
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What?
If an each directive does has a value without properties or without a callable
.mapmethod, it causes an error.Fixes #67174.
To do:
Why?
The API can be more robust in handling data problems like this. It's likely the each should render nothing if instead of
[]the value isnullor some other non-iterable.Take and example like this:
This has many opportunities for runtime errors, starting with the
nullinitial value.How?
Check whether a property is iterable and iterate instead of calling its
.mapmethod.Testing Instructions
The snippets above can be used.
Needs unit tests.
Screenshots or screencast
demo.mov