A **loop** is a sequence of statements which is specified once but which may be carried out several times in succession.
0
votes
1answer
64 views
Code execution within delimiters
Is there any way I can execute a block of code in a loop, like so:
[ some code goes here ]
Where the delimiters are "[" and "]", and also allowing for nested blocks, i.e.:
[the user can create ...
-1
votes
2answers
220 views
How do Jquery programmers write their for loops? [closed]
I know someone who claims that 'real' Jquery programers never write their own for-loops, they use .each() instead. I'm aware that they don't use Pascal, but I've never heard anything about them ...
0
votes
2answers
78 views
Loading chunks around center
I am making a voxel game like Minecraft. I am able to load chunks using multithreading with the code...
for (int x = 0; x < WorldSettings.WORLD_WIDTH_IN_CHUNKS; x++)
{
for (int y = 0; y < ...
16
votes
4answers
2k views
Why are nested loops considered bad practice?
My lecturer mentioned today that it was possible to "label" loops in Java so that you could refer to them when dealing with nested loops. So I went home and looked up the feature as I didn't know ...
6
votes
4answers
249 views
Is it a performance hit to create threads that loop a lot to check for things?
This is a generic question that I've always wondered.
In general, is it intensive for a CPU to create threads that perform "while not true ..." loops or similar?
For example, suppose I do:
// ...
0
votes
4answers
113 views
Use functions inside a loop declaration
What's the best practice?
This :
for ($i = 0; $i < count($array); $i++) {
//stuff
}
Or, what I usually do :
$count = count($array);
for($i = 0; $i < $count; $i++) {
//stuff
}
Is it the ...
8
votes
2answers
514 views
How to unit test method that returns a collection while avoiding logic in the test
I am test-driving a method that is to generate a collection of data objects. I want to verify that the properties of the objects are being set correctly. Some of the properties will be set to the same ...
2
votes
2answers
222 views
Repetitive Drawing in Javascript & Canvas
Creating an HTML5 page using canvas and javascript to draw a set number of musical staves on the page, spaced a pre-determined amount in between.
What I have is re-drawn on top of the canvas 10 ...
43
votes
7answers
3k views
Why are semicolons and commas interchanged in for loops?
In many languages (a wide list, from C to JavaScript):
commas , separate arguments (e.g. func(a, b, c)), while
semicolons ; separate sequential instructions (e.g. instruction1; instruction2; ...
-1
votes
1answer
125 views
max(x-y,0) is loop-computable [closed]
I use the programming language Loop: http://en.wikipedia.org/wiki/LOOP_%28programming_language%29
I know that the every primitve recursive function is loop computable and vice versa but I would like ...
1
vote
1answer
121 views
LOOP program only need inc and zero
I have 4 different commands in LOOP programming language:
y=Zero()
y=Val(x)=copy x and put it in register y
y=Inc(x)=x+1
y=Dec(x)=x-1
Finally I also have
loop n times {
...
...
1
vote
0answers
64 views
Trying to draw multiple routes on a map [closed]
I have a piece of code here that plots a group of points on a map, and then joins them to draw a route. I want to draw multiple routes on the same map though, and I'm not sure how to do that. Can ...
3
votes
3answers
211 views
Is there an idiom for a loop that executes some block of instructions between iterations? (In Ruby in particular)
I often need to do some operations in a loop and some other operations between the iterations. A simple example would be collecting words from an array into a string, spelled backwards and separated ...
3
votes
4answers
447 views
Declaring functions in order to avoid explicit nested loops
My programming professor has told me that it is a good programming practice (at least in C/C++) to declare a function with the inner loop when nesting loops (not for loops, since when, i.e. looping ...
2
votes
1answer
449 views
Loop Invariants in Python
I have a bit of experience with loop invariants but I'm not really clear on them. I'm trying to learn them through an example in Python. Can someone point one out or help me understand?
I've ...
3
votes
1answer
182 views
Loop invariant vs Assertions
I have an exam on Programming Concepts this Saturday and I am struggling to find some information to understand some concepts better.
What is the difference between loop invariant and assertion? To ...
7
votes
1answer
426 views
Loop fusion example using aspect-oriented framework
I had recently read a paper 'Aspect-Oriented Programming' by Gregor Kiczales and others, and found there the loop fusion example.
Here is a definition of the loop fusion from the paper
…the loop ...
4
votes
4answers
539 views
Decrementing/Incrementing loop variable inside for loop. Is this code smell?
I have to read lines from a text file in sequential order. The file is a custom text format that contains sections. If some sections are out of order, I would like to look for the starting of the next ...
3
votes
3answers
412 views
Is there a way to add unique items to an array without doing a ton of comparisons?
Please bare with me, I want this to be as language agnostic as possible becuase of the languages I am working with (One of which is a language called PowerOn). However, most languanges support for ...
4
votes
3answers
907 views
Does it make a difference if I declare variables inside or outside a loop in Java? [duplicate]
Possible Duplicate:
Where do you declare variables? The top of a method or when you need them?
Does it make a difference if I declare variables inside or outside a loop in Java?
Is this
...
0
votes
3answers
6k views
2 Dimensional Arrays in C++
I started learning arrays in C++ and came over a little side note in the book talking about 2D arrays in breif.
I tested it out and i was amazed that it could give the programmer the ability to store ...
9
votes
7answers
2k views
C# foreach improvements?
I run into this often during programming where I want to have a loop count index inside of a foreach and have to create an integer, use it, increment, etc. Wouldn't it be a good idea if there was a ...
-1
votes
4answers
778 views
How to improve my loop logic in programming?
I know how to do simple loops but I don't know what's going on when many loops are working together.
For example:
for (i=0; i <= 9; i++){
document.write(linebreak);
for (m=0; m <= 9; ...
44
votes
6answers
8k views
Who created the idea(s) of the first loop constructs?
while (1) {
if (1+1==2) {
print "Yes, you paid attention in Preschool!";
} else {
print "Wait... I thought 1+1=2";
}
}
As a developer, we all have to use ...
