September 2017 Update

Task/Call-a-function/Zkl/call-a-function-1.zkl

@@ -0,0 +1,10 @@
+f(); f(1,2,3,4);
+fcn f(a=1){}()  // define and call f, which gets a set to 1
+fcn{vm.arglist}(1,2,3,4) // arglist is L(1,2,3,4)
+fcn{a1:=vm.nthArg(1)}(1,2,3)  // a1 == 2
+(f() == True); (f() and 1 or 2)
+if (f()) println()
+f(f) // pass f to itself
+s:=f()
+fcn{}.isType(self.fcn)  //True
+fcn{}.len.isType(self.fcn)  //False, len is a Method

Task/Call-a-function/Zkl/call-a-function-2.zkl

@@ -0,0 +1,10 @@
+fcn(a,b,c).fp(1)()   // call function with a always set to 1
+fcn(a,b,c).fp1(2,3)() // call function with b & c always set to 2 & 3
+fcn(a,b,c,d).fpN(3,5)() // call function with d always set to 5
+fcn{vm.arglist}.fpN(3,66)(1,2,3,4,5) //-->L(1,2,3,66,4,5)
+fcn{}.fpM("01-",5) // use a mask to select parameters
+   // 1 is supplied, 0 is get upon call, - is chop arglist
+fcn{vm.arglist}.fpM("01-",66)(1,2,3,4) //-->L(1,66)
+
+a:=5; f('wrap(b){a+b}) // 'wrap is syntactic sugar for .fpN
+   // to create a lexical closure --> f(fcn(b,a){a+b}.fpN(1,a))