Issue with [@types/emscripten]

[damms005]

I got compilation errors in my TypeScript project:

npm run compile                           

> [email protected] compile
> tsc -p ./

node_modules/@types/emscripten/index.d.ts:44:33 - error TS2304: Cannot find name 'WebGLRenderingContext'.

44     preinitializedWebGLContext: WebGLRenderingContext;
                                   ~~~~~~~~~~~~~~~~~~~~~

node_modules/@types/emscripten/index.d.ts:58:28 - error TS2304: Cannot find name 'MessageEvent'.

58     onCustomMessage(event: MessageEvent): void;
                              ~~~~~~~~~~~~


Found 2 errors in the same file, starting at: node_modules/@types/emscripten/index.d.ts:44

How to reproduce

• git clone https://github.com/damms005/devdb-vscode
• git checkout chore/switch-sqlite3-to-sqljs
• npm i
• npm run compile
• See the error above

How do I get the missing types?

[typescript-bot]

Thanks for the discussion about "emscripten", some useful links for everyone:

• npm
• DT
• Related discussions

Pinging the DT module owners: @zakki, @periklis, @kbumsik, @lourd.

[aleksander-ciesielski]

just encountered the same issue. I believe both WebGLRenderingContext and MessageEvent are part of Web APIs, so I included DOM libs in my project (by adding "dom" to compilerOptions.lib in the tsconfig.json), which fixed the issue for me:

{
  "compilerOptions" {
    "lib": ["dom"],
  }
}