doc: add troubleshooting section about extremely long load times #4567
+37
−0
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Summary
closes #4294
Allowing ts-jest to process JavaScript files is not typically beneficial, as ts-jest is a tool specifically designed to transform TypeScript files so that Jest can understand and test them.
Developers who are uninformed about this might mistakenly include JavaScript files in their transform regex, which could result in ts-jest passing all imported modules, including already-transpilled dependencies, to the TypeScript compiler.
This can lead to significant delays when importing modules, particularly during the initial run (without any cache).
This PR aims to add a new entry in the troubleshoot guide, in the hope that people having this issue mind find it from a google search result.
Test plan
No tests, as it is documentation.
Does this PR introduce a breaking change?
Other information
N/A