Bomb

# Using flow.get inside a function in a template node **URL:** \ **Category:** General\ **Created:** [20 October 2021 06:23 UTC](https://discourse.nodered.org/t/using-flow-get-inside-a-function-in-a-template-node/52446 "2021-10-20T06:23:13Z")\ **Posts on this page:** 12\ **Page:** 1

**Author:** ![RogierQ](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/rogierq/32/3211_2.png) [@RogierQ](https://discourse.nodered.org/u/RogierQ)\ **Post date:** [20 October 2021 06:23 UTC](https://discourse.nodered.org/t/using-flow-get-inside-a-function-in-a-template-node/52446/1 "2021-10-20T06:23:13Z")

To check if a button that is pressed on a webpage i want to get the last pushed button on a page To do this i want to save the pressed button with flow.set and when a button is pressed again check the current button input id with the previous by getting it by flow.get But flow.get is not working. Checking google / forums i found tips with {{ or {{{ and with a $ None of these works What is the correct way to do this inside a function? what i have now is this ```auto Bomb

{{msg.payload}}

``` ---

**Author:** ![Steve-Mcl](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/steve-mcl/32/4826_2.png) [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)\ **Post date:** [20 October 2021 06:35 UTC](https://discourse.nodered.org/t/using-flow-get-inside-a-function-in-a-template-node/52446/2 "2021-10-20T06:35:24Z")

Context is server side (node-red runtime) do you can't access context in client side script. You would save the last button pressed in your flow not in client code. ---

**Author:** ![RogierQ](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/rogierq/32/3211_2.png) [@RogierQ](https://discourse.nodered.org/u/RogierQ)\ **Post date:** [20 October 2021 06:43 UTC](https://discourse.nodered.org/t/using-flow-get-inside-a-function-in-a-template-node/52446/3 "2021-10-20T06:43:04Z")

Thanks! sounds hard to solve it then. isnt it possible then to save something on client side? how do they do this normally on a website then? the idea is that they only can change the last pressed button on the webpage ---

**Author:** ![UnborN](https://avatars.discourse-cdn.com/v4/letter/u/4491bb/32.png) [@UnborN](https://discourse.nodered.org/u/UnborN)\ **Post date:** [20 October 2021 14:19 UTC](https://discourse.nodered.org/t/using-flow-get-inside-a-function-in-a-template-node/52446/4 "2021-10-20T14:19:51Z")

> [@RogierQ](#): > > isnt it possible then to save something on client side? you can .. using some variable outside the scope of your changeImage function. ```javascript scope.lastButton; // last button state ``` just the syntax is a bit different from normal javascript because the NodeRed Dashboard is based on the front-end language Angular. **Example** ```auto [{"id":"b11293a5f92bf98a","type":"ui_template","z":"5847b7aa62131d37","group":"61db9c3f37fc1036","name":"","order":1,"width":"12","height":"7","format":"\n\n\n\nBomb\n\t\n\n\n\n \n \n \n \n \n \n \n \n \n \n \n

$\"\"$ \n	$\"\"$ \n
$\"\"$ \n	$\"\"$ \n

\n\n

{{msg.payload}}

\n\n \n\n\n","storeOutMessages":false,"fwdInMessages":false,"resendOnRefresh":false,"templateScope":"local","className":"","x":340,"y":1240,"wires":[["75d8d7a42c1072d4"]]},{"id":"75d8d7a42c1072d4","type":"debug","z":"5847b7aa62131d37","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"payload","targetType":"msg","statusVal":"","statusType":"auto","x":570,"y":1240,"wires":[]},{"id":"61db9c3f37fc1036","type":"ui_group","name":"test","tab":"74b1d602a9d252c0","order":1,"disp":false,"width":"12","collapse":false,"className":""},{"id":"74b1d602a9d252c0","type":"ui_tab","name":"Bom","icon":"dashboard","order":1,"disabled":false,"hidden":false}] ``` ---

**Author:** ![Buckskin](https://avatars.discourse-cdn.com/v4/letter/b/b9e5f3/32.png) [@Buckskin](https://discourse.nodered.org/u/Buckskin)\ **Post date:** [20 October 2021 23:12 UTC](https://discourse.nodered.org/t/using-flow-get-inside-a-function-in-a-template-node/52446/5 "2021-10-20T23:12:44Z")

I have only just started this stuff but why not; ```auto (function(scope) { let button = 0 let lastButton = 0 scope.changeImage = function(event) { button = event.target.id; // current button id ... whatever you plan on doing with the information lastButton = button } ``` ---

**Author:** ![UnborN](https://avatars.discourse-cdn.com/v4/letter/u/4491bb/32.png) [@UnborN](https://discourse.nodered.org/u/UnborN)\ **Post date:** [20 October 2021 23:24 UTC](https://discourse.nodered.org/t/using-flow-get-inside-a-function-in-a-template-node/52446/6 "2021-10-20T23:24:34Z")

> [@Buckskin](#): > > but why not you can define them as normal js variables but if you add them to `scope` .. those variables are going to be part of Angular and will be responsive. if you use the Example above and add, a div : `

Last Image Clicked : {{lastButton}}

` With every update of that scope.lastButton variable, the DOM updates automagically. ---

**Author:** ![Buckskin](https://avatars.discourse-cdn.com/v4/letter/b/b9e5f3/32.png) [@Buckskin](https://discourse.nodered.org/u/Buckskin)\ **Post date:** [21 October 2021 21:47 UTC](https://discourse.nodered.org/t/using-flow-get-inside-a-function-in-a-template-node/52446/7 "2021-10-21T21:47:52Z")

> [@UnborN](#): > > you can define them as normal js variables but if you add them to `scope` .. those variables are going to be part of Angular and will be responsive. That is true, but there is nothing in the HTML `` section that is wanting to show that information so I was, (possibly falsely) assuming that all that was required was to use the info in the `