TSLint and VSCode not showing red-line in .ts file

Question

I have a single .ts file where i am learning to configure tslint and tsconfig. I have induced extra spaces and removed semi-colon intentionally to check if tslint is configured properly.

Using command tslint filename.ts i could see tslint could find errors in .ts file but VSCode is not showing those red lines ?

I have generated tslint.json and tsconfig.json using CLI: tslint --init,tsc --init

But in angular-app it shows

What am i missing? I went to through tslint and tsconfig docs, couldn't find how to configure.

how to get red-line in normal ts-files? Thanks in advance

Answer 1

Finally found the solution. Its basically TSLint extension issue not TSLint CLI itself. The extension need tslint and typescript in node_modules for it to work. So i added package.json

{
  "devDependencies": {
    "typescript": "^3.2.1",
    "tslint": "5.11.0"
  }
}

and ran npm install . Restarted VSCode. I got those red-lines back. :-)