Loops - Revision history

Latias1290: I'm pretty sure that that means the same. Which is obviously incorrect then.

2015-07-01T12:31:50Z

I'm pretty sure that that means the same. Which is obviously incorrect then.

Bomb Bloke: Mostly re-wording / minor corrections

2014-01-04T18:14:41Z

Mostly re-wording / minor corrections

AfterLifeLochie: Ported to to Tutorial template

2012-12-01T13:28:07Z

Ported to to Tutorial template

AfterLifeLochie: Ported to to Tutorial template

2012-12-01T13:27:26Z

Ported to to Tutorial template

AfterLifeLochie: Function -> Function (type)

2012-11-30T18:48:41Z

Function -> Function (type)

AfterLifeLochie: Corrected mapping from "Boolean" to "Boolean (type)"

2012-11-30T13:48:08Z

Corrected mapping from "Boolean" to "Boolean (type)"

68.94.12.153: /* Introducing Loops */

2012-07-22T03:36:59Z

‎Introducing Loops

99.127.245.44: /* The While loop */ Fixed grammar and misleading description

2012-07-17T17:50:09Z

‎The While loop: Fixed grammar and misleading description

Pinkishu: No they are not - they don't remove anything by being there and are nice so you can click on stuff you don't know about to see how it's used. Undo revision 2159 by Thesbros (talk)

2012-07-17T13:08:48Z

No they are not - they don't remove anything by being there and are nice so you can click on stuff you don't know about to see how it's used. Undo revision 2159 by Thesbros (talk)

Thesbros: Undo revision 2137 by Pinkishu (talk) Because they're simply pointless.

2012-07-17T00:10:05Z

Undo revision 2137 by Pinkishu (talk) Because they're simply pointless.

@@ Line 79: / Line 79: @@
 == The Repeat loop ==
-The reverse of a while loop - instead of repeating so long as a condition is true, it repeats until a condition is false. Since the check is done at the ''bottom'' of the code block, the code within it will always be executed at least once.
+The reverse of a while loop - instead of repeating so long as a condition is true, it repeats ''until'' a condition is true. Since the check is done at the ''bottom'' of the code block, the code within it will always be executed at least once.
   local i = 1

@@ Line 12: / Line 12: @@
 At some point while coding, you will most likely want to run some code multiple times, without writing out a lot of code. While it is true that functions can shorten your code, there may be situations where even those don't simplify it enough. That's where loops come in.
-Here is a script without loops
+Here is a name-gathering script without loops:
   local [[Function (type)|function]] GetName()
      [[write]]("Enter a name: ")
@@ Line 30: / Line 30: @@
 == The For loop ==
-The for loop is the most basic loop. It is in the following format
+The for loop is the most basic loop. It is in the following format:
-  for Variable = Start, End, Interval do
+  for ''Variable'' = ''Start'', ''End'', ''Interval'' do
      --Insert code here
   end
-Variable is a number that will track where we are in the loop. It is usually called "i", or something more appropriate to the script. Start is a number to indicate the start point for the loop. This is generally 1, so the loop can count up easily. End is the number the loop will count to. Interval is an optional argument, and will specify how big the jumps would be . Ie, it specifies how much to add or subtract from Variable every loop.
+''Variable'' is a number that will track where we are in the loop. It is usually called "i", or something more appropriate to the script. ''Start'' is a number to indicate the start point for the loop. In a simple loop this will typically be 1, but you may have need to start with other values. ''End'' is the number the loop will count to. ''Interval'' is an optional argument, and will specify how much to increment (or decrement!) ''Variable'' by with each iteration.
 The best way to discover how the for loop works is to try it yourself. Try changing the numbers the following code to see how it reacts.
@@ Line 40: / Line 40: @@
      [[print]]( "i is "..[[tostring]](i) )
   end
-Notice how it always counts up until Variable is the same or greater than End. Start, End, and Interval can also be variables, so it can loop a different number of times
+Notice how it always counts up until ''Variable'' is the same or greater than ''End''. ''Start'', ''End'', and ''Interval'' can also be variables, so it can loop a different number of times:
   [[write]]("How many times should I loop? ")
-  local Num = tostring( read() )
+  local Num = tonumber( read() )
   for i=1,Num do
      [[print]]("Looped "..[[tostring]](i).." time(s).")
   end
+Note that the loop only inspects ''Start'', ''End'', and ''Interval'' once - when the loop starts - so if their values change while the loop is running, it'll ignore this and loop according to as they were when it it begun.
 To simplify the first script using a for loop, it would look something like this:
@@ Line 55: / Line 55: @@
   end
   [[write]]("You have entered "..string)
 == The While loop ==
@@ Line 60: / Line 66: @@
 The While loop will continue looping until a certain condition is no longer met.
   local Answer, Correct = "", "2"
-  while Answer~=Correct do
+  while Answer ~= Correct do
      [[write]]("What is the sum of 1 and 1 (1+1)? ")
      Answer = [[read]]()
@@ Line 73: / Line 79: @@
 == The Repeat loop ==
-A very simple loop to repeat something a stated number of times. The first line declares a local variable and sets its value to 1
+The reverse of a while loop - instead of repeating so long as a condition is true, it repeats until a condition is false. Since the check is done at the ''bottom'' of the code block, the code within it will always be executed at least once.
-the repeat loop will print i until i = 5. Other conditions can also be used. unlike the while loop the repeat loop will always be
 executed once.
   local i = 1
@@ Line 81: / Line 85: @@
     [[print]](i)
     i = i + 1
-  until i == 5'''
+  until i == 5

@@ Line 3: / Line 3: @@
 |name=Loops
 |desc=This is a tutorial page for loops and their application.
-|objective=
+|objective=To understand the purposes, and uses of, loops and iterators
 |prereqs=[[Variables|A basic understanding of Variables]] and [[Function_(type)|a basic understanding of Functions]].
 }}

@@ Line 1: / Line 1: @@
 [[Category:Tutorials]]
-This is a tutorial page for loops and their application.
+{{Tutorial
 == Introducing Loops ==

@@ Line 7: / Line 7: @@
 Here is a script without loops
-  local [[function]] GetName()
+  local [[Function (type)|function]] GetName()
      [[write]]("Enter a name: ")
      return [[read]]()

@@ Line 62: / Line 62: @@
 This type of loop is useful for if you don't want to specify a definite end for the loop. Although infinite loops are ill-advised, you may want to use one at some point. To terminate a program stuck in a loop, hold Ctrl + T while in the computer's interface.
-  while [[boolean|true]] do --Always loop
+  while [[boolean_(type)|true]] do --Always loop
      --Code here
   end

@@ Line 7: / Line 7: @@
 Here is a script without loops
-  local function GetName()
+  local [[function]] GetName()
-     write("Enter a name: ")
+     [[write]]("Enter a name: ")
-     return read()
+     return [[read]]()
   end
@@ Line 18: / Line 18: @@
   local Name5 = GetName()
-  write("You have entered "..Name1.." "..Name2.." "..Name3.." "..Name4.." "..Name5)
+  [[write]]("You have entered "..Name1.." "..Name2.." "..Name3.." "..Name4.." "..Name5)
 As you can see, there is quite a lot of repetition, even when we're using a function.
@@ Line 32: / Line 32: @@
 The best way to discover how the for loop works is to try it yourself. Try changing the numbers the following code to see how it reacts.
   for i=1,10 do
-     print( "i is "..tostring(i) )
+     [[print]]( "i is "..[[tostring]](i) )
   end
 Notice how it always counts up until Variable is the same or greater than End. Start, End, and Interval can also be variables, so it can loop a different number of times
-  write("How many times should I loop? ")
+  [[write]]("How many times should I loop? ")
   local Num = tostring( read() )
   for i=1,Num do
-     print("Looped "..tostring(i).." time(s).")
+     [[print]]("Looped "..[[tostring]](i).." time(s).")
   end
@@ Line 45: / Line 45: @@
   local string = ""
   for i=1,5 do
-    write("Enter a name: ")
+    [[write]]("Enter a name: ")
     string=string.." "..read()
   end
-  write("You have entered "..string)
+  [[write]]("You have entered "..string)
 == The While loop ==
@@ Line 55: / Line 55: @@
   local Answer, Correct = "", "2"
   while Answer~=Correct do
-     write("What is the sum of 1 and 1 (1+1)? ")
+     [[write]]("What is the sum of 1 and 1 (1+1)? ")
-     Answer = read()
+     Answer = [[read]]()
      if Answer == Correct then print("Correct!") else print("Incorrect!") end
@@ Line 62: / Line 62: @@
 This type of loop is useful for if you don't want to specify a definite end for the loop. Although infinite loops are ill-advised, you may want to use one at some point. To terminate a program stuck in a loop, hold Ctrl + T while in the computers interface.
-  while true do --Always loop
+  while [[boolean|true]] do --Always loop
      --Code here
   end
@@ Line 73: / Line 73: @@
   local i = 1
   repeat
-    print(i)
+    [[print]](i)
     i = i + 1
   until i == 5'''