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What's the difference between isset() and array_key_exists()? [duplicate]
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123
Between array_key_exists and isset, though both are very fast [O(1)], isset is significantly f...
How to convert an int to string in C?
...o a string.
Here is an example:
int num = 321;
char snum[5];
// convert 123 to string [buf]
itoa(num, snum, 10);
// print our string
printf("%s\n", snum);
If you want to output your structure into a file there is no need to convert any value beforehand. You can just use the printf format spe...
Using CSS :before and :after pseudo-elements with inline CSS?
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You can't specify inline styles for pseudo-elements.
This is because pseudo-elements, like ps...
R programming: How do I get Euler's number?
...nd
exp(2)
represents e^2.
This works because exp is the exponentiation function with base e.
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How to do a JUnit assert on a message in a logger
...ate static final field, which most loggers are defined? Powermockito? Have fun..
– Stefano L
May 23 '19 at 17:46
Stefa...
Convert string to title case with JavaScript
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123
Here's my version, IMO it's easy to understand and elegant too.
var str = "foo bar baz"
...
Can a C++ enum class have methods?
...is not what John Doe would consider a class, too. Yet they can have member functions. And classes are really not mandatory for member functions. Using a designator like value or this, something like enum Size { Huge, Mega, Apocalypse; bool operator<(X rhs) const { return *this < rhs; } (here a...
Create nice column output in python
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data = [['a', 'b', 'c'], ['aaaaaaaaaa', 'b', 'c'], ['a', 'bbbbbbbbbb', 'c']]
col_width = max(...
Haskell, Lisp, and verbosity [closed]
...:
almost anything you can do with macros you can do with a higher-order function (and I include monads, arrows, etc.), but it might require more thinking (but only the first time, and it's fun and you'll be a better programmer for it), and
the static system is sufficiently general that it never g...
How do I make a textbox that only accepts numbers?
...
And just because it's always more fun to do stuff in one line...
private void textBox1_KeyPress(object sender, KeyPressEventArgs e)
{
e.Handled = !char.IsDigit(e.KeyChar) && !char.IsControl(e.KeyChar);
}
NOTE: This DOES NOT prevent...