How to use "Do it result"?

hey all yesterday while coding I discovered this “do it” can anyone explain to me what is that, how to use it and why is it disabled for me

I search for it in the community but I didn’t found relevant topics for that

Connect companion and use Do it to debug your blocks

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@dora_paz Thanks for your help

@dora_paz i have never used do it option i want to know what is use of this do it function and what help do we get from this thanks a humble request please tell me

@Jinx here is an example. A common error that we see in the community is list index too large and you have to explain that either the list is empty or that length of list is … Using Do it you can check that global variable and see for example that you are not receiving data from airtable or what actually your list contains or maybe that there is a list in your list etc…
Hope that helps

Thanks @dora_paz I learned somthing new today

see also tip 4 here App Inventor: How to Learn | Pura Vida Apps

Taifun

@Taifun Thanks for providing such wonderful snippets it really helped me a lot for my upcoming project

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