Apply a callback to an array: Difference between revisions

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 If one wants to create a new array consisting of transformed values then procedure mapdata may be more convenient.
-=={{header|PureBasic}}==
+=={{header|PowerShell}}==
+This can be done in PowerShell with the <code>ForEach-Object</code> cmdlet which applies a scriptblock to each element of an array:
-<lang PureBasic>Procedure Cube(Array param.i(1))
+<lang powershell>1..5 | ForEach-Object { $_ * $_ }</lang>
-    Protected n.i
+To recreate a ''map'' function, found in other languages the same method applies:
-    For n = 0 To ArraySize(param())
+<lang powershell>function map ([array] $a, [scriptblock] $s) {
-        Debug Str(param(n)) + "^3 = " + Str(param(n) * param(n) * param(n))
+    $a | ForEach-Object $s
-    Next
+}</lang>
-EndProcedure
-Dim AnArray.i(4)
-For n = 0 To ArraySize(AnArray())
-    AnArray(n) = Random(99)
-Next
-Cube(AnArray()) </lang>
 =={{header|Python}}==