make the syntax error message more helpful for TS users (#11807)

jestjs · Sep 20, 2021 · 6175fa1 · 6175fa1
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -2,6 +2,8 @@
 
 ### Features
 
+- `[jest-transform]` Improve the unexpected token error message. ([#11807](https://github.com/facebook/jest/pull/11807))
+
 ### Fixes
 
 - `[jest-runtime]` Fix regression when using `jest.isolateModules` and mocks ([#11882](https://github.com/facebook/jest/pull/11882))

diff --git a/packages/jest-transform/src/enhanceUnexpectedTokenMessage.ts b/packages/jest-transform/src/enhanceUnexpectedTokenMessage.ts
@@ -45,6 +45,9 @@ Here's what you can do:
 ${DOT}If you are trying to use ECMAScript Modules, see ${chalk.underline(
       'https://jestjs.io/docs/ecmascript-modules',
     )} for how to enable it.
+${DOT}If you are trying to use TypeScript, see ${chalk.underline(
+      'https://jestjs.io/docs/getting-started#using-typescript',
+    )}
 ${DOT}To have some of your "node_modules" files transformed, you can specify a custom ${chalk.bold(
       '"transformIgnorePatterns"',
     )} in your config.