Enabling the "allowUnreachableCode" Compiler Option in Visual Studio 2015 Triggers "JsErrorScriptException (0x3001)" Issue

We've implemented TypeScript in our Visual Studio 2015 (Update 2) setup for a non-ASP.Net project consisting of pure HTML and JavaScript. In order to disable the 'allowUnreachableCode' option, we made adjustments in the tsconfig file. It's common practice to include an early 'return' statement for debugging purposes. However, after turning off the unreachable code warning by setting the 'allowUnreachableCode' compiler option, we encountered a 'VSTSC' error during compilation: JsErrorScriptException (0x30001).

TSCONFIG

{
  "compilerOptions": {
    "target": "es5",
    "module": "commonjs",
    "sourceMap": true,
    "watch": true,
    "allowUnreachableCode": true
  }
}

CODE

let router = new Router();

router.start()

return;

... additional code

typescriptvisual-studio-2015tsconfig

Answer №1

"observe": true,

My hunch is that this specific choice is what's causing the issue.

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