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RegExp duplicate named capture groups

Category

JavaScript

Type

Chromium catches up

Status

Enabled by default (Chrome 125)

Intent stage

None

Summary

https://github.com/tc39/proposal-duplicate-named-capturing-groups

Motivation

https://github.com/tc39/proposal-duplicate-named-capturing-groups

Standards & signals

• Specification: https://github.com/tc39/ecma262/pull/2721
• Firefox: Positive — Firefox uses V8's regexp engine, so it is not actually an independent implementation here.
• Safari: Shipped/Shipping — Stage 3 TC39 proposal.
• Web developers: No signals

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