ts-node

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Added

• Eliminate "Emit Skipped" errors (#693, #1345, #1629)

  • Avoids all "Emit Skipped" errors by performing a fallback transpileOnly-style transformation.

  • Does not affect typechecking. Type errors are still detected and thrown.

  • Fallback has the same limitations as isolatedModules. This will only affect rare cases such as using const enums with preserveConstEnums disabled.

  • Fixes #693

• Graduate swc transpiler out of experimental; add swc: true convenience option (docs) (#1487, #1536, #1613, #1627)

  • "swc": true or --swc will use swc for faster execution

  • This feature is no longer marked "experimental." Thank you to everyone who filed bugs!

• Swc transpiler attempts to load @swc/core or @swc/wasm dependencies from your project before falling-back to global installations (#1613, #1627)

  • global fallback only occurs when using a global installation of ts-node

• Add support for TypeScript's traceResolution output (docs) (#1128, #1491)

• Support import assertions in ESM loader (docs) (#1557, #1558, #1559, #1573)

  • Allows importing JSON files from ESM with the requisite flag (docs)

• ts-node -vvv also logs absolute paths to ts-node and typescript, to make it more obvious when you're accidentally using globally-installed versions (#1323, #1620)

• Add swc target "es2022" (#1535, #1540)

  • When you have target es2022 in tsconfig, will use swc's es2022 target

Changed

• Initialize TypeScript compiler before starting REPL prompt

  • Improves responsiveness for first line of REPL input

• Use v8-compile-cache-lib to load typescript

  • improves startup time (#1339, #1603)

• Support both --camelCase and --hyphen-case for all CLI flags; update documentation to use --camelCase (#1598, #1599)

  • Not a breaking change; CLI continues to accept both forms

• Make TSError diagnosticText property non-enumerable to prevent it from being logged below the stack

Fixed

• Fix #1538: REPL inputs fail to transpile via swc (#1538, #1541, #1602)

• Fix #1478: REPL erroneously logged undefined for all inputs after the first when using swc transpiler (#1478, #1580, #1602)

• Fix #1389: In --showConfig output, emit accurate moduleTypes paths resolved relative to the tsconfig.json which declared them (#1389, #1619)

• Remove indentation from ts-node --help output (#1597, #1600)

• Fix #1425: Merged definitions correctly into tsconfig.schemastore-schema.json (#1425, #1618)

• Allow disabling "use strict" emit in SWC transpiler (#1531, #1537)

• Add missing ERR_UNKNOWN_FILE_EXTENSION constructor; was throwing ERR_UNKNOWN_FILE_EXTENSION is not a constructor

• Fix #1565: entrypoint resolution failed on node v12.0.x and v12.1.x (#1565, #1566)

Misc

• Adds experimental experimentalResolverFeatures option, but it does not do anything yet (#1514, #1614)

v10.4.0...v10.5.0
github.com/TypeStrong/ts-node/milestone/4