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What is the difference between HTTP_HOST and SERVER_NAME in PHP?
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Which is more efficient, a for-each loop, or an iterator?
...derwater.
If however, you mean by loop the old "c-style" loop:
for(int i=0; i<list.size(); i++) {
Object o = list.get(i);
}
Then the new for loop, or iterator, can be a lot more efficient, depending on the underlying data structure. The reason for this is that for some data structures, get...
What are valid values for the id attribute in HTML?
...a letter ([A-Za-z]) and may be followed by any number of letters, digits ([0-9]), hyphens ("-"), underscores ("_"), colons (":"), and periods (".").
HTML 5 is even more permissive, saying only that an id must contain at least one character and may not contain any space characters.
The id attribut...
How do I replace a character at a particular index in JavaScript?
...rototype.replaceAt = function(index, replacement) {
return this.substr(0, index) + replacement + this.substr(index + replacement.length);
}
And use it like this:
var hello = "Hello World";
alert(hello.replaceAt(2, "!!")); // Should display He!!o World
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Impossible to make a cached thread pool with a size limit?
... the first example, note that the SynchronousQueue has essentially size of 0. Therefore, the moment you reach the max size (3), the rejection policy kicks in (#4).
In the second example, the queue of choice is a LinkedBlockingQueue which has an unlimited size. Therefore, you get stuck with behavi...
How to explicitly discard an out argument?
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100
Starting with C# 7.0, it is possible to avoid predeclaring out parameters as well as ignoring t...
Genymotion, “Unable to load VirtualBox engine.” on Mavericks. VBox is setup correctly
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whoKnows
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answered Oct 29 '13 at 8:24
Amit OnAmit On
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Why are Python's 'private' methods not actually private?
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603
The name scrambling is used to ensure that subclasses don't accidentally override the private m...
How do I use WPF bindings with RelativeSource?
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Guge
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answered Sep 17 '08 at 15:14
Abe HeidebrechtAbe Heidebrecht
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Replace non-numeric with empty string
...r project. A field in our DB to hold a phone number is set to only allow 10 characters. So, if I get passed "(913)-444-5555" or anything else, is there a quick way to run a string through some kind of special replace function that I can pass it a set of characters to allow?
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