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Casting a variable using a Type variable
... int x = (int)obj;
DoSomethingWithInt(x);
} else if (type == typeof(string)) {
string s = (string)obj;
DoSomethingWithString(s);
} // ...
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How can I efficiently select a Standard Library container in C++11?
... well known image (cheat sheet) called "C++ Container choice". It's a flow chart to choose the best container for the wanted usage.
...
How can I delete all unversioned/ignored files/folders in my working copy?
...status --no-ignore | grep '^[I?]' | cut -c 9- |
# setting IFS to the empty string ensures that any leading or
# trailing whitespace is not trimmed from the filename
while IFS= read -r f; do
# tell the user which file is being deleted. use printf
# instead of echo because different implement...
How to declare an array in Python?
... contains references to items. Also, underlying array is created with some extra space.
Consequences of this are:
random access is really cheap (arr[6653] is same to arr[0])
append operation is 'for free' while some extra space
insert operation is expensive
Check this awesome table of operation...
Copy files from one directory into an existing directory
...opies it to the target, then returns back to whence ever you started.
The extra fussing is to handle relative or absolute targets.
(This doesn't rely on subtle semantics of the cp command itself ... about how it handles source specifications with or without a trailing / ... since I'm not sure thos...
How to code a BAT file to always run as admin mode?
...
What I Exactly searching for ! no extra changes or extra file required!
– MSS
Jun 15 '19 at 5:12
1
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Flexbox: center horizontally and vertically
...ligns a flex container’s lines within the
flex container when there is extra space in the cross-axis, similar to
how justify-content aligns individual items within the main-axis.
Note, this property has no effect on a single-line flex container.
More details here: How does flex-wrap work w...
How to generate a random string of a fixed length in Go?
I want a random string of characters only (uppercase or lowercase), no numbers, in Go. What is the fastest and simplest way to do this?
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Good reasons to prohibit inheritance in Java?
...re writing purely internal code this may be a bit of overkill. However the extra effort involved in adding five characters to a class file is very small. If you are writing only for internal comsumption then a future coder can always remove the 'final' - you can think of it as a warning saying "this...
Event on a disabled input
...vidual container of its own, if they aren't already laid out that way - an extra <span> or a <div>, say - just to make it easy to distinguish which disabled input was clicked).
The downside is that this trick unfortunately won't works for older browsers that don't support the pointer-...