Yeah, but it’s easy to overuse it. If your for loop is much longer. For a few lines I’d agree, don’t bother using something longer.
Code should scream out it’s intent for the reader to see. It’s why you are doing something that needs to be communicated, not what you are doing. “i”, “counter” or “index” all scream out what you are doing, not why. This is more important than the name being short (but for equal explanations of intent, go with the shorter name). The for loop does that already.
If you can’t do that, be more precise. At the least make it “cardIndex”, or “searchIndex”. It makes it easier to connect the dots.
Index can be useful but start looking for mapping and sorting functions. Or foreach. If you really must index, sure go use index or I if it’s conventionally understood. But reading something like for I in e where p == r.status is really taxing to make sense of
Oh yeah, I map, filter and reduce pretty much everywhere I can. But sometimes you need the index and i is so commonly understood to be that, I’d say it could even be less legible to deviate from that convention
It’s not incoherent, it just takes a tiny bit more effort to mentally parse as it’s not a stereotypical for loop. Maybe it’s just me, but let me try and explain
With the i example if you’re familiar enough with a language, your brain will gloss over the unimportant syntax, you go straight to the comparison and then whether it’s incrementing or decrementing.
With the other example, the first my brain did was notice it’s not following convention, which then pushes me to read the line carefully as there is probably a reason it doesn’t.
I’m not saying it’s a huge difference or anything, but following code conventions like this makes things like code reviews much easier cumulatively.
I’d say except indices in general. Just bloats every line where you need to use them. Imagine writing CUDA C++ where you regularly add and multiply stuff and every number is referenced via (usually) 1-3 indices. Horrible.
Except
iright? Something likecounterorindexseems unconventional and unnecessarily verboseYeah, but it’s easy to overuse it. If your for loop is much longer. For a few lines I’d agree, don’t bother using something longer.
Code should scream out it’s intent for the reader to see. It’s why you are doing something that needs to be communicated, not what you are doing. “i”, “counter” or “index” all scream out what you are doing, not why. This is more important than the name being short (but for equal explanations of intent, go with the shorter name). The for loop does that already.
If you can’t do that, be more precise. At the least make it “cardIndex”, or “searchIndex”. It makes it easier to connect the dots.
Index can be useful but start looking for mapping and sorting functions. Or foreach. If you really must index, sure go use index or I if it’s conventionally understood. But reading something like for I in e where p == r.status is really taxing to make sense of
Oh yeah, I map, filter and reduce pretty much everywhere I can. But sometimes you need the index and
iis so commonly understood to be that, I’d say it could even be less legible to deviate from that conventionIn what world is
for (int index = 0; index < objectToIterate; index++) { // DO YO THANG }less coherent than
for (int i; i < objectToIterate; i++) { // DO YO THANG }The world where the convention is
iWhat’s incoherent about the first one? Why is index bad beyond standards
It’s not incoherent, it just takes a tiny bit more effort to mentally parse as it’s not a stereotypical for loop. Maybe it’s just me, but let me try and explain
With the
iexample if you’re familiar enough with a language, your brain will gloss over the unimportant syntax, you go straight to the comparison and then whether it’s incrementing or decrementing.With the other example, the first my brain did was notice it’s not following convention, which then pushes me to read the line carefully as there is probably a reason it doesn’t.
I’m not saying it’s a huge difference or anything, but following code conventions like this makes things like code reviews much easier cumulatively.
I’d say except indices in general. Just bloats every line where you need to use them. Imagine writing CUDA C++ where you regularly add and multiply stuff and every number is referenced via (usually) 1-3 indices. Horrible.