error TS2300: Duplicate identifier

[squarepants]

I think it's very important to tell users use "exclude" or "files" in project "tsconfig.json".

If we don't write those in "tsconfig.json", we'll get bunch of errors tells us "Duplicate identifier" in "typescript" module. and the solution to this problem is to tell "tsc" what files we want to compile.

    "exclude": [
        "node_modules"
    ]

Sometimes users just switch loader, because the solution to this problem is not easy to find.

So I think it will be nice to have some instructions in docs.

[jbrantly]

It's kind of there already:

The files property should generally be specified even if its just an empty array. If the files property is not specified, then all TypeScript files in the directory and subdirectories will be included, possibly even ones that should not be.

[squarepants]

Alright, my bad. At least somebody like me miss this in doc has solution to search.

[szahn]

Missed this in the docs as well. For someone fairly new to the JS build chain, I missed the fact that you had to exclude the folder for node modules in the tsconfig.json, not the webpack.config.js. The documentation for tsconfig.json is more clear here: https://github.com/Microsoft/TypeScript/wiki/tsconfig.json. You do need to exclude folders after all.

[jbrantly]

Reopening to try to make docs more clear.

[Klortho]

Well, I just got bit by this, and, in fact, I still can't find the reference to "The files property ...". If it's not on the README here, where else would it be? I'm not new to node, but very new to typescript, and only using it because I'm trying to get somebody else's code to work in webpack.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[stale]

Closing as stale. Please reopen if you'd like to work on this further.