SyntaxError: Unexpected token function

Question

Making a chat application referencing via Node in action, and upon running the server.js, got the following error: function serveStatic(response,cache,absPath) ^^^^^^^^ SyntaxError: Unexpected token function at Object.exports.runInThisContext (vm.js:73:16) at Module._compile (module.js:543:28) at Object.Module._extensions..js (module.js:580:10) at Module.load (module.js:488:32) at tryModuleLoad (module.js:447:12) at Function.Module._load (module.js:439:3) at Module.runMain (module.js:605:10) at run (bootstrap_node.js:418:7) at startup (bootstrap_node.js:139:9) at bootstrap_node.js:533:3

Here is the Server.js code:

var http=require('http');                             
var fs=require('fs');                                 
var path=require('path');                                                
var path= require('mime');                            
var cache={}; 




var server=http.createServer(function(request,response)
{
    var filePath=false;
    if(request.url=='/')
    {
      filePath= public/index.html;
    }
    else
    {
      'public' + request.url;
    }

    var absPath= './'+filePath;
    serveStatic(response,cache,absPath);
});

server.listen(3000,function() 
{

 console.log('Server listening to the port :3000');

});




function send404 (response )
{
    response.writeHead(404,{'Content-Type' :'text/plain'});
    response.write('Error 404: resource not found');
    response.end();
}




function sendFile(response,filePath,fileContents)
{
    response.wrieHead(200,
       {"content-type":mime.lookup(filePath)})

       };
       response.end(fileContents);

}



function serveStatic(response,cache,absPath)
{
    if(cache[absPath])
    {
    sendFile(response,absPath,cache[absPath]);
    }
    else
    {
       if(fs.exists(absPath, function(exists)))
       {
        if(exists)
        {
          fs.readFile(absPath,function(err,data))
          {
          if(err)

          {
            send404(response);
          }
          else
          {
            cache[absPath]=data;
            sendFile(response,absPath,data);
          }
          });

        }
        else
        {
        send404(response);
        }
       });
    }
}

Answer 1

In my case setting the buildOptimizer from false to true worked.

From:

"development": {
  "buildOptimizer": false,
  "optimization": {
    "scripts": true,
    "styles": {
      "minify": true,
      "inlineCritical" : false
    },
    "fonts": true
  },
  "vendorChunk": true,
  "extractLicenses": false,
  "sourceMap": true,
  "namedChunks": true
}

To:

"development": {
  "buildOptimizer": true,
  "optimization": {
    "scripts": true,
    "styles": {
      "minify": true,
      "inlineCritical" : false
    },
    "fonts": true
  },
  "vendorChunk": true,
  "extractLicenses": false,
  "sourceMap": true,
  "namedChunks": true
}

Answer 2

You have extra brackets here:

function sendFile(response,filePath,fileContents)
{
    response.wrieHead(200,
       {"content-type":mime.lookup(filePath)})

       };
       response.end(fileContents);

}

Should be modified this way:

function sendFile(response, filePath, fileContents)
{
    response.wrieHead(200, {
      "content-type": mime.lookup(filePath)
    });
    response.end(fileContents);

}

Then your error will be dismissed.