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GetSubstitution replace-with-capture-index behavior diverges from major implementations #228

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gibson042 opened this issue Oct 3, 2023 · 0 comments

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gibson042 commented Oct 3, 2023 •

edited

The lack of single-digit fallback for nonexistent capture indices will be nonconforming when tc39/ecma262#3157 is merged.

cf. tc39/test262#3931 (comment)

$ eshost -se '"foo-x-bar".replace(/(x)/, "|$10|")'
#### ChakraCore, GraalJS, Hermes, JavaScriptCore, Moddable XS, QuickJS, SpiderMonkey, V8
foo-|x0|-bar

#### engine262
foo-|$10|-bar

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