I cannot call a function in main.js

I got error when tried to call a function in main.js:

Video:

action.js:31 Unhandled exception running script Event sheet 1, event 1, action 1: ReferenceError: testMessage is not defined

at EventSheet1_Event1_Act1 (scriptsInEvents.js:8)

at Action.RunUserScript (action.js:31)

at EventBlock._RunActions_ReturnValue (eventBlock.js:27)

at EventBlock._RunAndBlock (eventBlock.js:24)

at EventBlock.Run (eventBlock.js:21)

at EventSheet._ExecuteTrigger (eventSheet.js:19)

at EventSheet._TriggerForClass (eventSheet.js:13)

at EventSheet._Trigger (eventSheet.js:12)

at EventSheetManager._Trigger (eventSheetManager.js:13)

at C3Runtime.Trigger (runtime.js:86)

RunUserScript action.js:31

async function (async)

RunUserScript action.js:31

_RunActions_ReturnValue eventBlock.js:27

_RunAndBlock eventBlock.js:24

Run eventBlock.js:21

_ExecuteTrigger eventSheet.js:19

_TriggerForClass eventSheet.js:13

_Trigger eventSheet.js:12

_Trigger eventSheetManager.js:13

Trigger runtime.js:86

TriggerAsync runtime.js:87

TriggerAsync sdkInstanceBase.js:4

_OnClick instance.js:3

(anonymous) plugin.js:1

(anonymous) sdkDOMPluginBase.js:3

_OnEventFromDOM runtime.js:16

_OnMessageFromDOM runtime.js:14

_PostToRuntimeMaybeSync domHandler.js:2

_PostToRuntimeElementMaybeSync domElementHandler.js:4

(anonymous) domSide.js:3

action.js:32 Tip: run this to highlight in Construct the last script that had an error: goToLastErrorScript()

See the manual section on scripting, specifically JavaScript in Construct. Construct uses JavaScript Modules, where scope works differently to classic scripts.

Thank Ashley,

Can you help to make a sample script in main.js

As the manual section states, either use JavaScript Modules, or use globalThis to explicitly refer to globals. There are also lots of scripting examples that come with Construct.

As the manual section states, either use JavaScript Modules, or use globalThis to explicitly refer to globals. There are also lots of scripting examples that come with Construct.

Thank Ashley, I resolved my issue, just change the Script Purpose to "Imports for events" then it's work.