Difference "not equal to" vs "not is empty"

I want to understand,

  • why is an if condition with “not equal to” not considered
    but a condition
  • “not is empty” is considered
    where is the difference ?

I didn’t get your doubt

There is no difference between these blocks.
You can use any block

Thanks for your answer,
that’s what I thought too, but for me only the variant with “not is empty” works (at least in companion)

I don’t have any idea about this but both blocks works for me in export apk file.

1 Like

You may use both. Make sure no space in the block.


Of course, both work:

grafik grafik


learn to debug your blocks like @bodymindpower did…
see also tip 4 here App Inventor: How to Learn | Pura Vida Apps
see also Live Development, Testing, and Debugging Tools


Thanks to all for your answers !
in the end @Hassan answer soved my “problem”
Blocks from @bodymindpower are very helpfull as well as the links from @Taifun

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