# Extension help w/ functions
**URL:** https://forum.makecode.com/t/extension-help-w-functions/45566
**Category:** Help
**Tags:** extension
**Created:** [August 24, 2026, 9:50pm UTC](https://forum.makecode.com/t/extension-help-w-functions/45566 "2026-08-24T21:50:15Z")
**Posts on this page:** 12
**Page:** 1
### Author:  [@VoxelMaster64](https://forum.makecode.com/u/VoxelMaster64)
#### Post date: [August 24, 2026, 9:50pm UTC](https://forum.makecode.com/t/extension-help-w-functions/45566/1 "2026-08-24T21:50:15Z")
Is it possible to make a block look like (in an extension):
 (original:) 
Basically, its 2 function parts in one block.
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### Author:  [@redSprite](https://forum.makecode.com/u/redSprite)
#### Post date: [August 24, 2026, 11:16pm UTC](https://forum.makecode.com/t/extension-help-w-functions/45566/2 "2026-08-24T23:16:38Z")
Why would we want this?
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### Author:  [@VoxelMaster64](https://forum.makecode.com/u/VoxelMaster64)
#### Post date: [August 25, 2026, 2:37am UTC](https://forum.makecode.com/t/extension-help-w-functions/45566/3 "2026-08-25T02:37:29Z")
to find out which is faster, e.g. `x | 0` vs `Math.floor(x)` vs `Math.trunc(x)` vs the other 2 `Math` functions. It could be really useful for huge loops (e.g. raycasting).
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### Author:  [@Sarge](https://forum.makecode.com/u/Sarge)
#### Post date: [August 26, 2026, 3:35am UTC](https://forum.makecode.com/t/extension-help-w-functions/45566/4 "2026-08-26T03:35:27Z")
Short answer: no (I tried before)
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### Author:  [@TheEarth](https://forum.makecode.com/u/TheEarth)
#### Post date: [August 26, 2026, 4:30pm UTC](https://forum.makecode.com/t/extension-help-w-functions/45566/5 "2026-08-26T16:30:38Z")
just create a project that runs math floor 1000 times every frame or less and then the same for math trunc math ceiling and math round
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### Author:  [@VoxelMaster64](https://forum.makecode.com/u/VoxelMaster64)
#### Post date: [August 27, 2026, 1:57am UTC](https://forum.makecode.com/t/extension-help-w-functions/45566/6 "2026-08-27T01:57:47Z")
im thinking maybe have a
\_function(a: () =\> void) { return a }
and just make the input an array, like
 (original:) 
would that work?
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### Author:  [@VoxelMaster64](https://forum.makecode.com/u/VoxelMaster64)
#### Post date: [August 27, 2026, 1:57am UTC](https://forum.makecode.com/t/extension-help-w-functions/45566/7 "2026-08-27T01:57:54Z")
but I want an extension to make it easier for other users.
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### Author:  [@TheEarth](https://forum.makecode.com/u/TheEarth)
#### Post date: [August 27, 2026, 10:15pm UTC](https://forum.makecode.com/t/extension-help-w-functions/45566/8 "2026-08-27T22:15:53Z")
Nashe what is this jargon
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### Author:  [@Sarge](https://forum.makecode.com/u/Sarge)
#### Post date: [August 27, 2026, 10:23pm UTC](https://forum.makecode.com/t/extension-help-w-functions/45566/9 "2026-08-27T22:23:17Z")
Can’t pass functions as arguments in blocks mate
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### Author:  [@VoxelMaster64](https://forum.makecode.com/u/VoxelMaster64)
#### Post date: [August 27, 2026, 10:42pm UTC](https://forum.makecode.com/t/extension-help-w-functions/45566/10 "2026-08-27T22:42:48Z")
moderators please edit to: “make” not “nashe”
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### Author:  [@VoxelMaster64](https://forum.makecode.com/u/VoxelMaster64)
#### Post date: [September 19, 2026, 7:46pm UTC](https://forum.makecode.com/t/extension-help-w-functions/45566/11 "2026-09-19T19:46:57Z")
you can, but a block with a function can’t return anything.
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### Author:  [@VoxelMaster64](https://forum.makecode.com/u/VoxelMaster64)
#### Post date: [September 19, 2026, 7:47pm UTC](https://forum.makecode.com/t/extension-help-w-functions/45566/12 "2026-09-19T19:47:17Z")
that was just an example, because I didn’t want to spoil what I was making