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When should I use malloc in C and when don't I?
...as much as I like this answer (I did give you +1), you can do the same without malloc() by just using a character array. Something like: char some_memory[] = "Hello"; some_memory[0] = 'W'; will also work.
– randombits
Dec 26 '09 at 17:45
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When to use symbols instead of strings in Ruby?
...trings are also used as identifiers in your code. You should be worrying about what symbols are meant to be, not only when you should use symbols. Symbols are meant to be identifiers. If you follow this philosophy, chances are that you will do things right.
There are several differences between th...
Tools for analyzing performance of a Haskell program
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how to find out why this solution is so slow. Are there any commands that tell me where most of the computation-time is spend so I know which part of my haskell-program is slow?
Precisely! GHC provides many excellent tools, including:
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How to manage REST API versioning with spring?
...ping that does arbitrary evaluations of header values from the request without doing the evaluation in the method body?
As described in this SO answer you actually can have the same @RequestMapping and use a different annotation to differentiate during the actual routing that happens during runtime...
How to cancel a Task in await?
... Wow great info! That worked perfectly, now I need to figure out how to handle the exception in the async method. Thanks man! I'll read the stuff you suggested.
– Carlo
Apr 13 '12 at 2:48
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Set the location in iPhone Simulator
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XCode 11.4+:
Features -> Location -> Custom Location
To find out which XCode version you have
$ /usr/bin/xcodebuild -version
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CSS triangle custom border color
... (border). However since it uses border properties I am unsure how to go about doing this. I would like to steer clear of javascript and css3 simply because of compatibility. I am trying to have the triangle have a white background with a 1px border (around the angled sides of the triangle) with col...
How do I profile memory usage in Python?
... 3.4 includes a new module: tracemalloc. It provides detailed statistics about which code is allocating the most memory. Here's an example that displays the top three lines allocating memory.
from collections import Counter
import linecache
import os
import tracemalloc
def display_top(snapshot, ke...
Javascript when to use prototypes
... treated purely an optimisation, not as something that you have to worry about when using the library.
The problem with JavaScript is that naked constructor functions require the caller to remember to prefix them with new or otherwise they typically don't work. There is no good reason for this. jQu...
Why doesn't RecyclerView have onItemClickListener()?
... documented (if at all) so there was a lot of confusion and SO questions about it.
Given that RecyclerView takes it a step further and doesn't have a concept of a row/column, but rather an arbitrarily laid out amount of children, they have delegated the onClick to each one of them, or to programmer...