title: Common variables for launch.json in Visual Studio Code
body: <p>I have seen how <code>launch.json</code> for Visual Studio Code has access to <code>${workspaceFolder}</code>.  Does it also have access to other common variables?  I would like to have access to the current user's AppData folder so I can do:</p>
  
  <pre><code>"program": "${appData}\\Roaming\\npm\\node_modules\\gulp\\bin\\gulp.js"
  </code></pre>
  
  <p>instead of hard-coding it as:</p>
  
  <pre><code>"program": "C:\\Users\\jdoe\\AppData\\Roaming\\npm\\node_modules\\gulp\\bin\\gulp.js"
  </code></pre>