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Java “params” in method signature?
...
In Java it's called varargs, and the syntax looks like a regular parameter, but with an ellipsis ("...") after the type:
public void foo(Object... bar) {
for (Object baz : bar) {
System.out.println(baz.toString());
}
}
The vararg param...
Best way to detect Mac OS X or Windows computers with JavaScript or jQuery
...m trying to move a "close" button to the left side when the user is on Mac and the right side when the user is on PC. Now I'm doing it by examining the user agent, but it can be too easily spoofed for reliable OS detection. Is there a surefire way to detect whether the OS on which the browser is run...
Accessing a class's constants
...
Always mix up :: and . ;)
– Nick
May 1 '17 at 22:17
Things a...
Why does ReSharper tell me “implicitly captured closure”?
...
The warning tells you that the variables end and start stay alive as any of the lambdas inside this method stay alive.
Take a look at the short example
protected override void OnLoad(EventArgs e)
{
base.OnLoad(e);
int i = 0;
Random g = new Random();
t...
Recreating a Dictionary from an IEnumerable
...
2016 now, and I still had to google this. You'd think that there would be a constructor for Dictionary that took a IEnumerable<KeyValuePair<TKey, TValue>> just like List<T> takes a IEnumerable<T>. Also there is ...
typedef fixed length array
...used as a function argument, it will be passed by reference, not by value, and the sizeof for it will then be wrong.
A better solution would be
typedef struct type24 { char x[3]; } type24;
You probably also want to be using unsigned char instead of char, since the latter has implementation-defin...
How do I find all installed packages that depend on a given package in NPM?
... which depends on A. I'm not sure this is technically correct since X, Y, and Z also depend on it. If it doesn't show X, Y, and Z, what else isn't it showing?
– Michael
Sep 5 '19 at 15:53
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Accessing last x characters of a string in Bash
...of string:
${string: -3}
or
${string:(-3)}
(mind the space between : and -3 in the first form).
Please refer to the Shell Parameter Expansion in the reference manual:
${parameter:offset}
${parameter:offset:length}
Expands to up to length characters of parameter starting at the character
spe...
List comprehension rebinds names even after scope of comprehension. Is this right?
...change in Python
3, to improve equivalence between list
comprehensions and generator
expressions. In Python 2, the list
comprehension "leaks" the loop control
variable into the surrounding scope:
x = 'before'
a = [x for x in 1, 2, 3]
print x # this prints '3', not 'before'
This was ...
Can't find a “not equal” css attribute selector
...v foo="z">ZZZ</div>
div:not([foo='']) will select both the first and second div elements. If you only want div elements that have an attribute foo that is set to an empty string, you should use:
div[foo]:not([foo=''])
If you want all elements with attribute foo that is neither y nor z, y...