# \#code-function

**URL:** https://the.fmsoup.org/tag/code-function/48.md

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## [FM18 while function vs recursive custom functions performance question](https://the.fmsoup.org/t/fm18-while-function-vs-recursive-custom-functions-performance-question/363)

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**Author:** [@FileKraft](https://the.fmsoup.org/u/FileKraft)\
**Replies:** 26\
**Last updated:** [November 16, 2020, 12:23am UTC](https://the.fmsoup.org/t/fm18-while-function-vs-recursive-custom-functions-performance-question/363 "2020-11-16T00:23:19Z")

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newly introduced WHILE function is a nice feature of FM18. How does it perform in comparison to a semantically equivalent recursive custom function?

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## [Code () Function Error](https://the.fmsoup.org/t/code-function-error/331)

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**Author:** [@Torsten](https://the.fmsoup.org/u/Torsten)\
**Replies:** 2\
**Last updated:** [September 13, 2019, 8:45am UTC](https://the.fmsoup.org/t/code-function-error/331 "2019-09-13T08:45:46Z")

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The Code () function delivers a less-than five digits block for the first character (leftmost) in a string. The documention text says 5 digits but the sample given further down on the same page contradicts it and FMP18 …