Questions tagged [loops]
A **loop** is a sequence of statements which is specified once but which may be carried out several times in succession.
154
questions
1
vote
1
answer
192
views
Should I separate special cases from for loop deliberately, or let a for loop handles special cases naturally?
Suppose I need to find the last selected index of options according to last selected contents, eg: options : A,B,C,D,E ,last selected option: C, so the last selected index is 2.
There is a special ...
- 1,911
3
votes
4
answers
357
views
Reducing cyclomatic complexity of a state machine
I have a function (written in Python) that processes a loosely structured log file.
The log file would have begin-end markers for different sections, with each section describing different things (e.g....
-3
votes
1
answer
85
views
Declarative name for function with multi-purpose-loop from broken-up monolithic function [closed]
I'm currently in the process of reworking a monolithic function.
My first step is finding blocks of code that can be extracted into their own "sub"-methods for ease of readability & ...
- 97
2
votes
2
answers
140
views
Using the word "loop" as a subject in a sentence [closed]
I would like to explain the following code to my colleagues:
for options in [{Option.NO_CUTOFFS}, {}, {Option.HEURISTIC}]:
...
The following sentence is kind of awkward:
This loop loops on the ...
- 543
-1
votes
2
answers
4k
views
Loop pattern for batch data processing
When processing data sets in batches I usually can think of the following three implementations.
Which one do you consider better than the other and why?
Notes:
The implementation is in C# but the ...
- 115
1
vote
2
answers
203
views
Make infinite loop handleable via delay?
I have a Node.js micro-service architecture-based back-end. Services communicate with each other via PubSub. E.g. upon a request to service A, service A messages either service B or service C via ...
- 255
4
votes
2
answers
134
views
Separation of data retrieval and processing in loops?
Often I need to get some data and process it in some way. For example getting a list of customers from an API and assemble some summary data on them. As an example, getting :
api_result = api.request(...
- 1,551
0
votes
1
answer
85
views
Explicit expression of a counter
Consider the following pseudo-code:
cont = 0
for g = 1,...,m
for h = g,...,m
cont = cont + 1
end for
end for
I'm searching for the explicit map that returns cont in ...
- 111
-5
votes
1
answer
1k
views
How do I manage multiple nested for-loops without using multiple variables?
If I have code that looks like this:
int i;
void functionA (){
for (i=0; i<10; i++){
functionB();
}
}
void functionB (){
for (i=0; i<20; i++){
doSomething();
}
}
...
- 107
1
vote
2
answers
1k
views
Calling recursive method in a loop - Backtracking
I'm confused about a matter that I've been unable to figure out. I'm doing some leetcode problems. In backtracking problems, sometimes we use loop within our recursive method to call the recursion but ...
- 127
22
votes
9
answers
8k
views
Declaring that a function never returns
If I have a function that never returns (it contains an infinite loop) how do I declare/communicate that it will never return to the user of the function?
The user does not see the source code, only ...
- 489
0
votes
5
answers
497
views
How to deail with a hypothetical situation in which a pub/sub cycle gets into an unending recursive loop?
Let me explain what I mean. Imagine A subs to event b. In such case A pubs event a. B subs to event a. In this case B subs b. This is a full-blown circle. How does a pub/sub cycle deal with such ...
- 27
3
votes
1
answer
362
views
What is the expected performance of While loops using `array.pop()` assignment vs other methods
Recently I was asked to refactor some code that leverages JavaScript's array.reduce() method because other developers felt the code hard to read. While doing this I decided to play around with some ...
- 149
-4
votes
4
answers
634
views
What are use cases of using optional for loop statements?
I don't think any of them are good practice. In addition to that they make the code longer.
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/for
Optional initialization
...
- 219
-4
votes
1
answer
138
views
Is there any formula or trick to count how many times a statement inside a nested loop gets executed?
I am modifying a software which is for trash collection. While reading the code, I asked myself is there any formula or trick to quickly calculate the number of time the statement gets executed inside ...
- 1