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Codebase Compiler FAQ
Nathan Shively-Sanders edited this pageSep 2, 2022 ·1 revision
getElementTypeOfArrayType(t)===numberType
getElementTypeOfArrayType returns undefined ift is not an array type.UseisArrayType orisArrayLikeType if that's all you need to know.
Probably you returnundefined instead of a new or existin node, but look at src/compiler/transformers/ts.ts.Deleting type annotations is its main job.
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