# How to delete message parts in function node
**URL:** https://discourse.nodered.org/t/how-to-delete-message-parts-in-function-node/15447
**Category:** General
**Created:** [12 September 2019 04:18 UTC](https://discourse.nodered.org/t/how-to-delete-message-parts-in-function-node/15447 "2019-09-12T04:18:25Z")
**Posts on this page:** 15
**Page:** 1
### Author:  [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)
#### Post date: [12 September 2019 04:18 UTC](https://discourse.nodered.org/t/how-to-delete-message-parts-in-function-node/15447/1 "2019-09-12T04:18:25Z")
I know the `change` node allows you to _delete_ parts of a message.
What command do I use in a `function` node to get the same thing done?
Thanks.
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### Author:  [@Bobo](https://discourse.nodered.org/u/Bobo)
#### Post date: [12 September 2019 05:40 UTC](https://discourse.nodered.org/t/how-to-delete-message-parts-in-function-node/15447/2 "2019-09-12T05:40:52Z")
Have a read of this and see if you apply it to individual properties.
[https://nodered.org/docs/user-guide/writing-functions](https://nodered.org/docs/user-guide/writing-functions)
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### Author:  [@krambriw](https://discourse.nodered.org/u/krambriw)
#### Post date: [12 September 2019 05:41 UTC](https://discourse.nodered.org/t/how-to-delete-message-parts-in-function-node/15447/3 "2019-09-12T05:41:45Z")
Example:
msg.topic = null;
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### Author:  [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)
#### Post date: [12 September 2019 05:46 UTC](https://discourse.nodered.org/t/how-to-delete-message-parts-in-function-node/15447/4 "2019-09-12T05:46:12Z")
@bobo Thanks. Looking.
@krambriw Yeah, and the `msg.` still have those properties listed in the `debug` window (or next node) when it arrives.
I would prefer to not have them listed at all.
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### Author:  [@krambriw](https://discourse.nodered.org/u/krambriw)
#### Post date: [12 September 2019 05:48 UTC](https://discourse.nodered.org/t/how-to-delete-message-parts-in-function-node/15447/5 "2019-09-12T05:48:04Z")
Then
delete msg.topic;
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### Author:  [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)
#### Post date: [12 September 2019 05:49 UTC](https://discourse.nodered.org/t/how-to-delete-message-parts-in-function-node/15447/6 "2019-09-12T05:49:31Z")
Would you like to elaborate on that?
I'm stupid.
I admit it.
I don't know if the command `delete msg.foo` exists.
Yeah, ok: I maybe should have tried it before posting. See above.
Shall try soon.
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### Author:  [@krambriw](https://discourse.nodered.org/u/krambriw)
#### Post date: [12 September 2019 05:50 UTC](https://discourse.nodered.org/t/how-to-delete-message-parts-in-function-node/15447/7 "2019-09-12T05:50:10Z")
I try always BEFORE I post 😉
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### Author:  [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)
#### Post date: [12 September 2019 05:51 UTC](https://discourse.nodered.org/t/how-to-delete-message-parts-in-function-node/15447/8 "2019-09-12T05:51:11Z")
Then you are better then me. What can I say?
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### Author:  [@krambriw](https://discourse.nodered.org/u/krambriw)
#### Post date: [12 September 2019 05:53 UTC](https://discourse.nodered.org/t/how-to-delete-message-parts-in-function-node/15447/9 "2019-09-12T05:53:45Z")
You are still trying to learn,,,,the same as I do !!!
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### Author:  [@krambriw](https://discourse.nodered.org/u/krambriw)
#### Post date: [12 September 2019 05:54 UTC](https://discourse.nodered.org/t/how-to-delete-message-parts-in-function-node/15447/10 "2019-09-12T05:54:57Z")
No worries, it aint easy all the things to handle, I know, just realized this after upgrade to 1.0
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### Author:  [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)
#### Post date: [12 September 2019 05:56 UTC](https://discourse.nodered.org/t/how-to-delete-message-parts-in-function-node/15447/11 "2019-09-12T05:56:24Z")
I'm not going there yet. Too scared of what I may find.
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### Author:  [@krambriw](https://discourse.nodered.org/u/krambriw)
#### Post date: [12 September 2019 06:02 UTC](https://discourse.nodered.org/t/how-to-delete-message-parts-in-function-node/15447/12 "2019-09-12T06:02:03Z")
If the stuff you have today aint working yet, you better fix that first before upgrading, at least I think so. If you have used a lot of code in function nodes, you should really look into how you wrote that code. We had discussions about that, maybe you noticed?
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### Author:  [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)
#### Post date: [12 September 2019 06:06 UTC](https://discourse.nodered.org/t/how-to-delete-message-parts-in-function-node/15447/13 "2019-09-12T06:06:25Z")
Yeah, well...... That's a whole other thing.
I am now re-writing a lot of code to make it nicer/better/(something else) so it is of higher quality.
I think that is 100% ongoing as there is no defined layout of what is wanted.
As I am writing, I see other/better ways of doing things and over 10 RPIs and 2 NUCs, it is painful when I have 2/3's of NO PROGRAMMING KNOWLEDGE.
All this started less than 3 years ago.
NR probably less than 2.
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### Author:  [@krambriw](https://discourse.nodered.org/u/krambriw)
#### Post date: [12 September 2019 06:18 UTC](https://discourse.nodered.org/t/how-to-delete-message-parts-in-function-node/15447/14 "2019-09-12T06:18:31Z")
I think, coming back to the topic, this is a better example for you (using code in function nodes). You can run it and study the differences in the msg sent to debug
```auto
[{"id":"32ac6a9a.e0dc56","type":"inject","z":"60f50465.20a53c","name":"","topic":"","payload":"true","payloadType":"bool","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":700,"y":100,"wires":[["b4e5c41d.c24248"]]},{"id":"b824f72c.176208","type":"function","z":"60f50465.20a53c","name":"","func":"node.warn(msg);\ndelete msg.payload.Who;\nreturn msg;","outputs":1,"noerr":0,"x":1070,"y":100,"wires":[["f6e4cc5d.086d4"]]},{"id":"f6e4cc5d.086d4","type":"debug","z":"60f50465.20a53c","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"true","targetType":"full","x":1230,"y":100,"wires":[]},{"id":"b4e5c41d.c24248","type":"function","z":"60f50465.20a53c","name":"","func":"msg = {\"topic\":null,\"host\":null,\"_msgid\":\"a2c057de.049818\",\"_topic\":null,\"payload\":{\"Who\":\"TimePi\",\"device\":\"UpLink\",\"UpLink\":\"Online\"},\"_event\":\"node:97bcd5bc.1a76e8\",\"condition\":\"Online\"};\nreturn msg;","outputs":1,"noerr":0,"x":880,"y":100,"wires":[["b824f72c.176208","9caca000.d752f"]]},{"id":"9caca000.d752f","type":"debug","z":"60f50465.20a53c","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"true","targetType":"full","x":1070,"y":170,"wires":[]}]
```
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### Author:  [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)
#### Post date: [12 September 2019 07:12 UTC](https://discourse.nodered.org/t/how-to-delete-message-parts-in-function-node/15447/15 "2019-09-12T07:12:20Z")
Thanks.
I indulged your suggestion and just put the line
`delete msg.(what ever part);`
And it is deleted.