Function definition: Difference between revisions

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 Strictly as described in the task:
+<lang tcl>proc multiply { arg1 arg2 } {
+    return [expr {$arg1 * $arg2}]
+}</lang>
+{{works with|Tcl|8.5}} <br>
+You can also create functions that work directly inside expressions. This is done by creating the command with the correct name:
+<lang tcl>proc tcl::mathfunc::multiply {arg1 arg2} {
+    return [expr {$arg1 * $arg2}]
+}
+# Demonstrating...
- proc multiply { arg1 arg2 } {
+if {multiply(6, 9) == 42} {
-    return [expr $arg1 * $arg2]
+    puts "Welcome, Citizens of Golgafrincham from the B-Ark!"
- }
+}</lang>
 =={{header|Toka}}==