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Type annotations can only be used in TypeScript files.ts(8010) on React-Native CLI Startup · Issue #29123 · facebook/react-native · GitHub
public' can only be used in a .ts file" in typescript tslint react setup? - Stack Overflow
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This can only be used in ts files · Issue #408 · microsoft/vscode · GitHub
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Type annotations can only be used in TypeScript files : r/reactjs
Type Aliases can only be used in a .ts file · Issue #49894 · microsoft/vscode · GitHub
Creation of d.ts mishandles case of `export const a = 34` · Issue #12734 · microsoft/TypeScript · GitHub
js 'types' can only be used in a .ts file - Visual Studio Code using @ts-check - Stack Overflow
error message "Type annotations can only be used in TypeScript files" · Issue #5 · halfnelson/svelte-type-checker-vscode · GitHub
Switch Rollup from Webpack. Previously we applied Tree Shaking in… | by Daybrush (Younkue Choi) | NAVER FE Platform | Medium
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Type Aliases can only be used in a .ts file · Issue #49894 · microsoft/vscode · GitHub
