Is there a switch case extension instead of numerous if/then/else?

[Studio_WHY]

I tried, but could not find one. No relevant topic here either.

[ABG]

How many if/then/else variants?

If there are so many, maybe what you needed was a table or dictionary lookup.

See the question/answer/score table in How do I program multiple choice questions that include different text for each wrong answer.
Because the score per answer is part of the table, there is no need for an if/then test to decide to add to a score or not, since the score increment is built into the table structure.

This is called table oriented programming.

[TIMAI2]

You could use the webviewer and run some javascript against your data...

JavaScript Switch Statement

returning the result with the webviewstring

[Anke]

@Studio_WHY

No relevant topic here either.

Many if statments

Why not use the switch statement? https://www.w3schools.com/java/java_switch.asp Example: int value = 29; switch(value) { case 29: // Do something case 30: // Do something }

[Studio_WHY]

is that for AI2?

[SteveJG]

An opportunity for extension developers. In many programming languages it is called a Case statement. App Inventor would certainly benefit from a Case statement. I am not aware of any current extension that can do this with App Inventor.

For all the extension developers, here is some java code https://www.geeksforgeeks.org/switch-statement-in-java/ that shows how to write a Case statement that might help making an extension.

[Studio_WHY]

that will be awesome, btw, can anyone make list component more powerful such as sublist

[Taifun]

I moved the new Switch Case extension by @marco_tanzi into its own thread, so later we will be able to find it again...

Switch Case Extension

I have developed a simple extension (one method only), which implements the switch case statement. (Written in javascript) [blocks (47)] switchcase.aia (10.9 KB) com.appybuilder.chiccovision.Switch.aix (10.0 KB)

Taifun