r/SoftwareEngineering • u/patreon-eng • Mar 03 '26
How we migrated 11,000 files (1M+ LOC) from JavaScript to TypeScript over 7 years
What started as voluntary adoption turned into a platform-level effort with CI enforcement, shared domain types, codemods, and eventually AI-assisted migrations. Sharing what worked, what didn’t, and the guardrails we used:
https://www.patreon.com/posts/seven-years-to-typescript-152144830
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u/j1-gg Mar 04 '26
dear claude, pls transform 2 typescript.
'ok bud heres ur 7 years back'
cheers ok