nodeJS: forEach loop is not a function, error

Question

I'm using

array.forEach()

function and I get an error that

parsedBody.forEach is not a function.

The

parseBody

produces a value and I've used

forEach

in other methods and the function works fine. So why is

forEach

not working in this case?

Edit: parseBody is an object. How do I turn it into an array?

(server.js):

console.log('- before request.post');



            request.post({

                url: `${dc_link}/audit`, //includes dc_IP, dc_port and /audit

                headers: 

                    {     

                    "jwt": jwt.sign(token, jwtSecret)

                }

            }, function(error,response,body){  //*

                    console.log('path 0');

                    console.log('error:', error);

                    let parseBody = JSON.parse(body);

                    console.log('parseBody.additionalData', parseBody.additionalData);



                parseBody.forEach(function(element){   //**HERE

                    console.log('path 3');



                });

                }

(console.log):

[stdout] - before request.post

[stdout] start respondWithJSON

[stderr] /app/server.js:435

[stderr]                parseBody.forEach(function(element, index, array){ //*

[stderr]                          ^

[stderr] TypeError: parseBody.forEach is not a function

[stderr]     at Request._callback (/app/server.js:435:15)

[stderr]     at Request.self.callback (/app/node_modules/request/request.js:188:22)

[stderr]     at emitTwo (events.js:106:13)

[stderr]     at Request.emit (events.js:191:7)

[stderr]     at Request.<anonymous> (/app/node_modules/request/request.js:1171:10)

[stderr]     at emitOne (events.js:96:13)

[stderr]     at Request.emit (events.js:188:7)

[stderr]     at IncomingMessage.<anonymous> (/app/node_modules/request/request.js:1091:12)

[stderr]     at IncomingMessage.g (events.js:286:16)

[stderr]     at emitNone (events.js:91:20)

[stdout] path 0

[stdout] error: null

[stdout] parseBody.additionalData iAAGtYgBAGkCBFoW4F4DARkDAQkDAQUDAQ

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Answer 1

parseBody appears to be an object since you're accessing it with dot notation. You need an array to use the forEach method. Turn parseBody into an array, and the problem is solved.

To turn it into an array, here is one possible solution:

  var arr = Object.keys(parseBody).map(function(key){ return parseBody[key]; });

nodeJS: forEach loop is not a function, error

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