GetElementByIndex
Version 1.8
function GetElementByIndex<T>(array: T[] | string | null, arrayIndex: number | null): T | any
Version 1.10
function GetElementByIndex(ctx: Required<TcHmi.Context>, arraySymbol: TcHmi.Symbol | null, arrayIndex: number | null): void
The function GetElementByIndex returns the value of a certain array index of a binding.
Parameter
Name | Type | Description |
---|---|---|
ctx Available from version 1.10 | Context object Does not need to be specified by the user when used in a trigger or function expression. In this case the transfer and the evaluation is done by the corresponding parser. Is used by the caller to indicate success or failure to the framework during execution. If the function is used directly in JavaScript/TypeScript, the context object must be passed in the call and evaluated if necessary. | |
arraySymbol | Version 1.8 Version 1.10 | A binding to the symbol of an array. |
index | The index of the array for which the value is to be returned. |
Return value
Type | Description |
---|---|
Version 1.8 Version 1.10 void | Version 1.8 The value that is stored in the position of the index in the array. Version 1.10 No return value. The result or error information is communicated via corresponding callback functions in the context object. |
NuGet package: Beckhoff.TwinCAT.HMI.Functions
![]() | NuGet packages are available from version 1.12. |
![]() | Available from 1.8 |