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Python - When to use file vs open
...ction that will return a file object.
In python 3.0 file is going to move from being a built-in to being implemented by multiple classes in the io library (somewhat similar to Java with buffered readers, etc.)
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Rounding up to next power of 2
...d. CPUs have an instruction to help this (actually already at that time?). From : jameshfisher.com/2018/03/30/round-up-power-2.html uint64_t next_pow2(uint64_t x) { return x == 1 ? 1 : 1<<(64-__builtin_clzl(x-1)); } And for 32 bit : uint32_t next_pow2(uint32_t x) { return x == 1 ? 1 : 1<&...
How to prevent sticky hover effects for buttons on touch devices
...
You can remove the hover state by temporarily removing the link from the DOM. See http://testbug.handcraft.com/ipad.html
In the CSS you have:
:hover {background:red;}
In the JS you have:
function fix()
{
var el = this;
var par = el.parentNode;
var next = el.nextSibling;...
How to find unused images in an Xcode project?
... if [ -z "$result" ]; then
echo "$i"
fi
done
# Ex: to remove from git
# for i in `./script/unused_images.sh`; do git rm "$i"; done
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Switching between tabs in NERDTree
...bind my vim navigation keys to switching between tabs. Here are the lines from my .vimrc file:
map <C-l> :tabn<CR>
map <C-h> :tabp<CR>
map <C-n> :tabnew<CR>
That way, I can switch between tabs using the left and right buttons just like I normally would move...
F# development and unit testing?
...g framework. It even works within FSI sessions allowing seamless migration from interactive testing to formal test suites.
– Stephen Swensen
Apr 3 '11 at 2:23
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How to loop through file names returned by find?
... shell expansion in bash and as a result of that x=$(find . -name "*.txt") from the question is not recommended at all. If find gets a filename with spaces e.g. "the file.txt" you will get 2 separated strings for processing, if you process x in a loop. You can improve this by changing delimiter (bas...
When is a language considered a scripting language? [closed]
... the same language can be used for scripting language by another.
This is from the wikipedia article about scripting languages:
A scripting language, script language or extension language is a programming language that allows control of one or more software applications. "Scripts" are distinct ...
What is a smart pointer and when should I use one?
...that std::unique_ptr instances cannot be copied. This prevents the pointer from being deleted multiple times (incorrectly). You can, however, pass references to it around to other functions you call.
std::unique_ptrs are useful when you want to tie the lifetime of the object to a particular block o...
Representing Monetary Values in Java [closed]
...e timeandmoney, and whilst I applaud them for trying to prevent developers from having to reinvent the wheel, I just don't have enough confidence in a pre-alpha library to use it in a production environment. Besides, if you dig around under the hood, you'll see they use BigDecimal too.
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