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How do you know a variable type in java?
... answered Feb 5 '14 at 4:24
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What's the difference between an argument and a parameter?
... the parameter.
A bit more info on:
http://en.wikipedia.org/wiki/Parameter_(computer_science)#Parameters_and_arguments
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Regex (grep) for multi-line search needed [duplicate]
...ould be printed; this way it won't do that.
In regexp:
(?s) activate PCRE_DOTALL, which means that . finds any character or newline
\N find anything except newline, even with PCRE_DOTALL activated
.*? find . in non-greedy mode, that is, stops as soon as possible.
^ find start of line
\1 backre...
reformat in vim for a nice column layout
...command in visual mode for step #1 is: '<,'>s/"\(\w\+\) \(\w\+\)"/"\1_\2"/g
– Luciano
Aug 11 '15 at 9:38
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Collections.emptyList() vs. new instance
...inal <T> List<T> emptyList() {
return (List<T>) EMPTY_LIST;
}
So if your method (which returns an empty list) is called very often, this approach may even give you slightly better performance both CPU and memory wise.
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More elegant “ps aux | grep -v grep”
...e grepped character: ps aux| grep "te[r]minal"
– meso_2600
Mar 23 '16 at 9:54
2
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Equivalent of *Nix 'which' command in PowerShell?
...on for the Which function:
function which($cmd) { get-command $cmd | % { $_.Path } }
PS C:\> which devcon
C:\local\code\bin\devcon.exe
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JavaScript variable number of arguments to function
... you can accept variable number of arguments with this syntax:
function my_log(...args) {
// args is an Array
console.log(args);
// You can pass this array as parameters to another function
console.log(...args);
}
Here's a small example:
function foo(x, ...args) {
console.l...
How to take a screenshot programmatically on iOS
...iOS7 or above
- (UIImage *) screenshot {
CGSize size = CGSizeMake(your_width, your_height);
UIGraphicsBeginImageContextWithOptions(size, NO, [UIScreen mainScreen].scale);
CGRect rec = CGRectMake(0, 0, your_width, your_height);
[_viewController.view drawViewHierarchyInRect:rec afte...
How to obtain the query string from the current URL with JavaScript?
...href);
myfunction("http://www.myname.com/index.html?id=dance&emp;cid=in_social_facebook-hhp-food-moonlight-influencer_s7_20160623");
here is the fiddle
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