Execute: Difference between revisions

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{{Built-in|Execute|⍎}} is a [[primitive function]] that evaluates a [[string]] as APL code.
{{Built-in|Execute|⍎}} is a [[primitive function]] that evaluates a [[string]] as APL code.


It should be noted that executing user-provided data is not safe. Some implementations provide alternative safe functionality through the [[system function]]s [[Verify Input]] (<source lang=apl inline>⎕VI</source>) and [[Fix Input]] (<source lang=apl inline>⎕FI</source>)or the combined function [[Verify and Fix Input]] (<source lang=apl inline>⎕VFI</source>).
It should be noted that executing user-provided data is not safe. Some implementations provide alternative safe functionality through the [[system function]]s [[Verify Input]] (<syntaxhighlight lang=apl inline>⎕VI</source>) and [[Fix Input]] (<syntaxhighlight lang=apl inline>⎕FI</source>)or the combined function [[Verify and Fix Input]] (<syntaxhighlight lang=apl inline>⎕VFI</source>).


== Examples ==
== Examples ==
<source lang=apl>
<syntaxhighlight lang=apl>
       ⍎'⍳10'
       ⍎'⍳10'
1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 7 8 9 10
</source>
</source>
A common use for this is to [[assignment|assign]] a value using a name given by a variable:
A common use for this is to [[assignment|assign]] a value using a name given by a variable:
<source lang=apl>
<syntaxhighlight lang=apl>
       varName←'myVar'
       varName←'myVar'
       myValue←42
       myValue←42
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* [https://help.dyalog.com/latest/#Language/Primitive%20Functions/Execute.htm Dyalog]
* [https://help.dyalog.com/latest/#Language/Primitive%20Functions/Execute.htm Dyalog]
* [http://microapl.com/apl_help/ch_020_020_710.htm APLX]
* [http://microapl.com/apl_help/ch_020_020_710.htm APLX]
* J [https://www.jsoftware.com/help/dictionary/d601.htm Dictionary], [https://code.jsoftware.com/wiki/Vocabulary/quotedot NuVoc] (as <source lang=j inline>".</source>)
* J [https://www.jsoftware.com/help/dictionary/d601.htm Dictionary], [https://code.jsoftware.com/wiki/Vocabulary/quotedot NuVoc] (as <syntaxhighlight lang=j inline>".</source>)
{{APL built-ins}}[[Category:Primitive functions]]
{{APL built-ins}}[[Category:Primitive functions]]

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