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rbenv not changing ruby version
...e github directions. I am running OSX but I have tried this on a Ubuntu 12.04 VM and got the same results. The following is what i get in my terminal when I try to change ruby versions:
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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...
LINQ equivalent of foreach for IEnumerable
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880
There is no ForEach extension for IEnumerable; only for List<T>. So you could do
items.To...
What is the difference between HTTP_HOST and SERVER_NAME in PHP?
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10 Answers
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Best way to repeat a character in C#
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answered Jan 4 '09 at 22:00
Christian C. SalvadóChristian C. Salvadó
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Increase font size chrome console
...eed a quick, temporary size bump you can press Ctrl + / - to zoom and Ctrl 0 to reset.
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Change Oracle port from port 8080
How do I change Oracle from port 8080? My Eclipse is using 8080, so I can't use that.
8 Answers
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Pure JavaScript: a function like jQuery's isNumeric() [duplicate]
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602
There's no isNumeric() type of function, but you could add your own:
function isNumeric(n) {
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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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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...