# Detect when context's variable changes its value

**URL:** <https://discourse.nodered.org/t/detect-when-contexts-variable-changes-its-value/1698>\
**Category:** Feature Requests\
**Created:** [19 July 2018 14:51 UTC](https://discourse.nodered.org/t/detect-when-contexts-variable-changes-its-value/1698 "2018-07-19T14:51:08Z")\
**Posts on this page:** 1\
**Showing post:** 20

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**Author:** ![E1cid](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/e1cid/32/77971_2.png) [@E1cid](https://discourse.nodered.org/u/E1cid)\
**Post date:** [30 May 2022 14:12 UTC](https://discourse.nodered.org/t/detect-when-contexts-variable-changes-its-value/1698/20 "2022-05-30T14:12:01Z")

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@Steve-Mcl posted a function with context listeners [here](https://discourse.nodered.org/t/lighting-controller-ideas/50876/19)

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