Set file associations per project in VS Code

I am in and out of several different frameworks. When editing in VS Code sometimes I want .js files to be "React JavaScript" instead of just "JavaScript" in a particular project.

You can set the association by creating settings.json in a .vscode directory. This

{
  "files.associations": {
    "*.js": "javascriptreact"
  }
  // other project settings
}

If you need different file associations you should be able to find them by searching: files.associations vscode + the language you need.