Hello!
I have a problem of following type:
a!localVariables( local!emptyArray: {}, ... { ... a!forEach( ... a!localVariables( local!variableWhichChangesWithEveryIteration:{...}, { /* Here I want to append the local variable's value to my empty array. Something like this: */ a!save(local!emptyArray, append(local!emptyArray, local!variableWhichChangesWithEveryIteration)) } ) ) /* my array will be used here */ } )
The problem is that value of the array won't refresh by itself (if I use saveInto in a textField, for example) and I don't know how to do it automatically...
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The trick is, in Appian, if your value isn't being supplied by user interaction, then there's no reason you can't just declare the variable that way up-front. There's no need (and also no way) to declare a blank variable then have some subsequent function call change it for you. That's because you can just declare it that way from the start.
a!localVariables( local!array: a!forEach( ..., "value that changes with each iteration" ), ... )
The Appian expression language is a functional language with immutable variables. Check out this: docs.appian.com/.../Expressions.html