I am solving a puzzle using python and depending on which puzzle I am solving I will have to use a special set of rules. How can I pass a function into another function in Python? Example def Game(listA, listB, rules): if rules == True: do... else: do... def Rule1(v): if "variable_name1" in v: return False ...
I checked out the latest Ruby version, to play a bit with the latest changes. The first thing I tried to do was call a Ruby lambda/block/proc just like you'd do with a Python callable. a = lambda {|x| puts x} a.call(4) # works, and prints 4 a[4] # works and prints 4 a.(4) # same a(4) # undefined method 'a' for main:Object Why isn't th...
Given this code: a = {1=>2} m = a.method(:[]) I know that I can now use : value = m.call(1) and it will return 2. The thing is, what do I need to change so that I can call the method directly like : m.call() and it will get the 1 sent as a parameter? It would be nice to be able to write something like : m = a.method(:[],1) # wh...
I am trying to do the following in JavaScript: var gete = document.getElementById; But I am getting the following error (From FireBug's Console): uncaught exception: [Exception... "Illegal operation on WrappedNative prototype object" nsresult: "0x8057000c (NS_ERROR_XPC_BAD_OP_ON_WN_PROTO)" location: "JS frame :: http://localhost:8080...
I have a case class which takes a list of functions: case class A(q:Double, r:Double, s:Double, l:List[(Double)=>Double]) I have over 20 functions defined. Some of these functions have their own parameters, and some of them also use the q, r, and s values from the case class. Two examples are: def f1(w:Double) = (d:Double) => math....
This question is related to How to Queue and Call Actual Methods... Anyway, I've decided to (after all) go with the anonymous class idea. The problem is that when I ADD my anonymous class to the linked list, it's actually calling execute() immediately... and it shouldn't be. Execute() is to be called later. Anyway, this is what I have: ...
More specifically what are the characteristics (if any) that delegates have that functions as first class values in F# don't have; and what are the characteristics that functions as first class values have (if any) that delegates in C# don't have? ...