Debug: `init is not defined` when transpiled with webpack

[gdepouilly]

I'm trying to transpile my project which has some dependencies that are using debug, and I got an error when I try to transpile it with this webpack config :

{
  target : "node",
  module : {
    rules : [{
      test    : /\.js$/,
      loader  : "babel-loader",
      options : {
        babelrc : false,
        presets : [
          ["@babel/preset-env", {
            "targets": { 
            "node": "6.11.2"
            }
        }]
       ]
      }
    }]
  }
}

The stacktrace is leading me to "./node_modules/debug/src/node.js" with this error "ReferenceError: init is not defined"
I'm using node.js v12.13.1, with webpack 4.41.5 and babel 7.

[Qix-]

Full stacktrace, please

[gdepouilly]

Here you go

Exception while executing function: Functions.routes
Microsoft.Azure.WebJobs.Host.FunctionInvocationException : Exception while executing function: Functions.routes ---> System.AggregateException : One or more errors occurred. ---> ReferenceError: init is not defined
    at eval (webpack://handle/./node_modules/debug/src/node.js?:12:16)
    at Object../node_modules/debug/src/node.js (D:\home\site\wwwroot\routes\handle.js:7276:1)
    at __webpack_require__ (D:\home\site\wwwroot\routes\handle.js:26:30)
    at eval (webpack://handle/./node_modules/debug/src/index.js?:8:20)
    at Object../node_modules/debug/src/index.js (D:\home\site\wwwroot\routes\handle.js:7265:1)
    at __webpack_require__ (D:\home\site\wwwroot\routes\handle.js:26:30)
    at eval (webpack://handle/./node_modules/documentdb/lib/log.js?:25:80)
    at Object../node_modules/documentdb/lib/log.js (D:\home\site\wwwroot\routes\handle.js:7525:1)
    at __webpack_require__ (D:\home\site\wwwroot\routes\handle.js:26:30)
    at eval (webpack://handle/./node_modules/documentdb/lib/queryExecutionContext/pipelinedQueryExecutionContext.js?:30:84)
    at Object../node_modules/documentdb/lib/queryExecutionContext/pipelinedQueryExecutionContext.js (D:\home\site\wwwroot\routes\handle.js:7669:1)
    at __webpack_require__ (D:\home\site\wwwroot\routes\handle.js:26:30)
    at eval (webpack://handle/./node_modules/documentdb/lib/queryExecutionContext/proxyQueryExecutionContext.js?:27:38)
    at Object../node_modules/documentdb/lib/queryExecutionContext/proxyQueryExecutionContext.js (D:\home\site\wwwroot\routes\handle.js:7681:1)
    at __webpack_require__ (D:\home\site\wwwroot\routes\handle.js:26:30)
    at eval (webpack://handle/./node_modules/documentdb/lib/queryIterator.js?:27:34)
   at System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions)
   at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout,CancellationToken cancellationToken)
   at EdgeJs.Edge.Func(String code)
   at as…

[Qix-]

No idea why this wouldn't be working. It works for millions of others every day. Perhaps open a ticket with microsoft? This appears to be their javascript engine.

[yvele]

@Qix- do you think this may be related to documentdb package? 🤔

Unfortunately the package is deprecated https://www.npmjs.com/package/documentdb

Upgrade to @azure/cosmos. Support for documentdb will end on August 30, 2020

@gdepouilly let's fill an issue in https://github.com/Azure/azure-cosmosdb-node and close this one

[Qix-]

Honestly, it looks like microsoft's engine doesn't support function hoisting, which is odd since it's part of the javascript specification.

[Qix-]

@yvele @gdepouilly Closing for now. Feel free to link back to this issue from the issue you open with Microsoft, for visibility and tracking purposes. :)