# Trigger node question

**URL:** <https://discourse.nodered.org/t/trigger-node-question/37045>\
**Category:** General\
**Created:** [5 December 2020 11:47 UTC](https://discourse.nodered.org/t/trigger-node-question/37045 "2020-12-05T11:47:31Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Dave](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/dave/32/10827_2.png) [@Dave](https://discourse.nodered.org/u/Dave)\
**Post date:** [5 December 2020 11:47 UTC](https://discourse.nodered.org/t/trigger-node-question/37045/1 "2020-12-05T11:47:31Z")

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I see in the trigger node properties **flow.** and **global.** what are they for ? I searched but cannot seam to find any example.  
Can I use something like flow. get('foo') in that field, (I tried that but it syntax appears to be wrong)

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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:** [5 December 2020 11:52 UTC](https://discourse.nodered.org/t/trigger-node-question/37045/2 "2020-12-05T11:52:14Z")

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They are to access context storage.

> **[Working with context : Node-RED](https://nodered.org/docs/user-guide/context)**

you would use 'foo' in the field to access `global.set('foo','a value')`  
global\>foo would return 'a value'.

`global.set('foo', {"bar":'a value'})`  
global\>foo.bar would return 'a value'.

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**Author:** ![Dave](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/dave/32/10827_2.png) [@Dave](https://discourse.nodered.org/u/Dave)\
**Post date:** [5 December 2020 12:28 UTC](https://discourse.nodered.org/t/trigger-node-question/37045/3 "2020-12-05T12:28:22Z")

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Yes it works, perfect, thank you

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**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [19 December 2020 12:28 UTC](https://discourse.nodered.org/t/trigger-node-question/37045/4 "2020-12-19T12:28:39Z")

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