Data commit

Task/Call-a-function/Arturo/call-a-function.arturo

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+printHello: $[][
+	print "Hello World!"
+]
+
+sayHello: $[name][
+	print ["Hello" name "!"]
+]
+
+printAll: $[args][
+	loop args [arg][
+		print arg
+	]
+]
+
+getNumber: $[][3]
+
+; Calling a function that requires no arguments
+printHello
+
+; Calling a function with a fixed number of arguments
+sayHello "John"
+
+; Calling a function with a variable number of arguments
+printAll ["one" "two" "three"]
+
+; Using a function in statement context
+if true [printHello]
+print getNumber
+
+; Using a function in first-class context within an expression
+if getNumber=3 [print "yep, it worked"]
+
+; Obtaining the return value of a function:
+num: getNumber
+
+print num