# Store a value in a function
**URL:** https://discourse.nodered.org/t/store-a-value-in-a-function/990
**Category:** FAQs
**Created:** [21 June 2018 16:51 UTC](https://discourse.nodered.org/t/store-a-value-in-a-function/990 "2018-06-21T16:51:28Z")
**Posts on this page:** 7
**Page:** 1
### Author:  [@Sjoerd](https://discourse.nodered.org/u/Sjoerd)
#### Post date: [21 June 2018 16:51 UTC](https://discourse.nodered.org/t/store-a-value-in-a-function/990/1 "2018-06-21T16:51:29Z")
Is there a way to store a value in a function node for future use? I want to do the following: A message contains a certain variable with a certain value. This message is received every 5 minutes. I want to compare the value of the variable with the value from the previous message and act upon the difference. Is that possible with a function node or should I use some other node?
Regards
Sjoerd van Staveren
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### Author:  [@hotNipi](https://discourse.nodered.org/u/hotNipi)
#### Post date: [21 June 2018 16:56 UTC](https://discourse.nodered.org/t/store-a-value-in-a-function/990/2 "2018-06-21T16:56:56Z")
Directly from docs: [https://nodered.org/docs/writing-functions#storing-data](https://nodered.org/docs/writing-functions#storing-data)
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### Author:  [@ukmoose](https://discourse.nodered.org/u/ukmoose)
#### Post date: [21 June 2018 17:01 UTC](https://discourse.nodered.org/t/store-a-value-in-a-function/990/3 "2018-06-21T17:01:20Z")
You can also store and retrieve the values using a change node
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### Author:  [@Sjoerd](https://discourse.nodered.org/u/Sjoerd)
#### Post date: [21 June 2018 17:01 UTC](https://discourse.nodered.org/t/store-a-value-in-a-function/990/4 "2018-06-21T17:01:53Z")
Oh dear, I should be ashamed of myself. Thank you for the quick response.
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### Author:  [@Energycharges](https://discourse.nodered.org/u/Energycharges)
#### Post date: [24 September 2020 04:45 UTC](https://discourse.nodered.org/t/store-a-value-in-a-function/990/5 "2020-09-24T04:45:35Z")
appecriate , if you can share me your sample code that u have written to get the values between 5 min interval.
Thanks
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### Author:  [@zenofmud](https://discourse.nodered.org/u/zenofmud)
#### Post date: [24 September 2020 08:09 UTC](https://discourse.nodered.org/t/store-a-value-in-a-function/990/6 "2020-09-24T08:09:16Z")
@Energycharges - two things
1 - did you read the documentation mentiond in this thread??
2 - this thread is over two years old so I'm going to close it. If you continue to have an issue after reading the documentation, please start a new thread explaining what you have tried and what you are trying to do. Thanks!
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### Author:  [@zenofmud](https://discourse.nodered.org/u/zenofmud)
#### Post date: [24 September 2020 08:09 UTC](https://discourse.nodered.org/t/store-a-value-in-a-function/990/7 "2020-09-24T08:09:20Z")