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google/closure-compiler

A JavaScript checker and optimizer.

5 good first / help-wanted issues · JavaScript · last activity Sep 22, 2026

7.7K stars 1.2K forks 7.7K watchers JavaScript Apache License 2.0

closure-compiler javascript optimization typechecking

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5 Open Issues Need Help Last updated: Sep 22, 2026

Open Issues Need Help

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Parse error for quoted export/import names 18 days ago

help wanted P3

google/closure-compiler

7.7K

A JavaScript checker and optimizer.

JavaScript

#closure-compiler#javascript#optimization#typechecking

Array constructor with length is not eliminated 6 months ago

help wanted good first issue P4 feat

google/closure-compiler

7.7K

A JavaScript checker and optimizer.

JavaScript

#closure-compiler#javascript#optimization#typechecking

Passthrough for dynamic import appears to have become impossible again 9 months ago

help wanted

google/closure-compiler

7.7K

A JavaScript checker and optimizer.

JavaScript

#closure-compiler#javascript#optimization#typechecking

Bad type annotation when documenting an optional parameter value 12 months ago

help wanted good first issue P4

google/closure-compiler

7.7K

A JavaScript checker and optimizer.

JavaScript

#closure-compiler#javascript#optimization#typechecking

Concatenated template literals are not merged about 1 year ago

enhancement good first issue

google/closure-compiler

7.7K

A JavaScript checker and optimizer.

JavaScript

#closure-compiler#javascript#optimization#typechecking