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Will using goto leak variables?
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Warning: This answer pertains to C++ only; the rules are quite different in C.
Won't x be leaked?
No, absolutely not.
It is a myth that goto is some low-level construct that allows you to override C++'s built-in scoping mechanisms. (If anything, it's longjmp that may be prone to ...
Equivalent of “continue” in Ruby
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Yes, it's called next.
for i in 0..5
if i < 2
next
end
puts "Value of local variable is #{i}"
end
This outputs the following:
Value of local variable is 2
Value of local variable is 3
Value of local variable is 4
Value of local variable is 5
=&...
How to declare and add items to an array in Python?
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No, if you do:
array = {}
IN your example you are using array as a dictionary, not an array. If you need an array, in Python you use lists:
array = []
Then, to add items you do:
array.append('a')
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Setting Vim whitespace preferences by filetype
...ndent based on the size of tabstop, and then spaces after that. Of course, if expandtab is on, all the tabs that get inserted are converted to spaces. stackoverflow.com/questions/1562336/… might help further. Without expand tab, Peter's answer would insert tabs that are 2 chars wide, not spaces.
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Order Bars in ggplot2 bar graph
...t required; the extra information in an ordered factor isn't necessary and if these data are being used in any statistical model, the wrong parametrisation might result — polynomial contrasts aren't right for nominal data such as this.
## set the levels in order we want
theTable <- within(theT...
Remove characters from C# string
...str = str.Replace(c, string.Empty);
}
But I may suggest another approach if you want to remove all non letter characters
var str = "My name @is ,Wan.;'; Wan";
str = new string((from c in str
where char.IsWhiteSpace(c) || char.IsLetterOrDigit(c)
select c
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C# - How to get Program Files (x86) on Windows 64 bit
...gram running on 64 bit windows
static string ProgramFilesx86()
{
if( 8 == IntPtr.Size
|| (!String.IsNullOrEmpty(Environment.GetEnvironmentVariable("PROCESSOR_ARCHITEW6432"))))
{
return Environment.GetEnvironmentVariable("ProgramFiles(x86)");
}
return Environme...
How to save an HTML5 Canvas as an image on a server?
...RL
}
}).done(function(o) {
console.log('saved');
// If you want the file to be visible in the browser
// - please modify the callback in javascript. All you
// need is to return the url to the file, you just saved
// and than put the image in your browser.
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Presenting a UIAlertController properly on an iPad using iOS 8
...ewController:alertController animated:YES completion:nil];
Editing for Swift 4.2, though there are many blogs available for the same but it may save your time to go and search for them.
if let popoverController = yourAlert.popoverPresentationController {
popoverController.sourceV...
What's your most controversial programming opinion?
...oid it becoming argumentative. I think it could be an interesting question if people treat it appropriately.
407 Answers
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