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Why is the default value of the string type null instead of an empty string?
...ccasion where this would be a problem is when the string is a return value from some function. Since string is a reference type and can technically have a value as null and empty both, therefore the function can also technically return a null or empty (there is nothing to stop it from doing so). Now...
TreeMap sort by value
...tion contain an element more than once. You just violated that constraint. From the SortedSet API: Note that the ordering maintained by a sorted set must be consistent with equals.... The solution would be to change to a List implementation.
– dacwe
Dec 12 '12 ...
How to get mouse position in jQuery without mouse-events?
... $("#popup").css("left", x);
}
In this way I'll always have the distance from the top saved in y and the distance from the left saved in x.
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What is the difference between call and apply?
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Follows an extract from Closure: The Definitive Guide by Michael Bolin. It might look a bit lengthy, but it's saturated with a lot of insight. From "Appendix B. Frequently Misunderstood JavaScript Concepts":
What this Refers to When a Functi...
Set a default parameter value for a JavaScript function
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From ES6/ES2015, default parameters are in the language specification.
function read_file(file, delete_after = false) {
// Code
}
just works.
Reference: Default Parameters - MDN
Default function parameters allow for...
Resize a large bitmap file to scaled output file on Android
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Not to my knowledge, but don't let that stop you from exploring this further.
– Justin
Jul 26 '10 at 12:18
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Is there a “vim runtime log”?
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I liked both approachs from Zyx and you, but your approach is better in my opinion because it's simpler, only in the cmd, and I can set a path to the log each time I run it, and I don't need to "inflate" my vimrc. And welcome to SO!
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“sending 'const NSString *' to parameter of type 'NSString *' discards qualifiers” warning
...nter to a constant NSString object.
Using a NSString * const prevents you from reassigning kSomeConstantString to point to a different NSString object.
The method isEqualToString: expects an argument of type NSString *. If you pass a pointer to a constant string (const NSString *), you are passing...
Pagination in a REST web application
...oducts of page X - page X may still be valid but contains now the products from page X + 1. So the URI for page X has become the URI for page X + 1 if you see it in "product resource view".
– Fionn
Apr 22 '09 at 12:36
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How do I replace a character at a particular index in JavaScript?
... @colllin: I absolutely agree. So I almost literally cloned the tests from jsfiddle to jsperf. However, aside from using the right tool, you have to do it in the right way. Pay attention to the problem, we're talking about what will happen if we have to make quite a few replacements in an algor...