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Regex expressions in Java, \\s vs. \\s+
...ce, whereas the second one matches one or many whitespaces. They're the so-called regular expression quantifiers, and they perform matches like this (taken from the documentation):
Greedy quantifiers
X? X, once or not at all
X* X, zero or more times
X+ X, one or more times
X{n} X, exactly n t...
Error: Could not create the Java Virtual Machine Mac OSX Mavericks
...nvalid argument. Java -version works now. Its just I installed something called node.js and to check its version it just requires -v. I thought it may have been a generic argument.
– user1574598
Sep 1 '14 at 16:08
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How are GCC and g++ bootstrapped?
...uilt
(optional) repeat step 2 for verification purposes.
This process is called bootstrapping. It tests the compiler's capability of compiling itself and makes sure that the resulting compiler is built with all the optimizations that it itself implements.
EDIT: Drew Dormann, in the comments, poin...
Map and Reduce in .NET
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Why oh why don't they just call it Reduce instead of Aggregate... MS just likes to annoy programmers
– John Henckel
Mar 28 '19 at 20:27
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Removing X-Powered-By
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@Castor What server versions are you using locally and on the production machine? Any differences in the PHP setup?
– Pekka
Apr 18 '10 at 10:11
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How to use nodejs to open default browser and navigate to a specific URL
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ForbesLindesay the callback is being called immediately, instead of when the window is closed. Any ideas?
– Sam Selikoff
Mar 1 '14 at 18:30
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if arguments is equal to this string, define a variable like this string
I am doing some bash script and now I got one variable call source and one array called samples , like this:
3 Answers
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How to jQuery clone() and change id?
I need to clone the id and then add a number after it like so id1 , id2 , etc. Everytime you hit clone you put the clone after the latest number of the id.
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How to save picture to iPhone photo library?
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One thing to remember: If you use a callback, make sure that your selector conforms to the following form:
- (void) image: (UIImage *) image didFinishSavingWithError: (NSError *) error contextInfo: (void *) contextInfo;
Otherwise, you'll crash with an error ...
HttpSecurity, WebSecurity and AuthenticationManagerBuilder
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great answer. I am wondering if we ever need to call permitAll on HttpSecurity? Can't we just ignore all open url's like /register or /login using WebSecurity? Then why does all tutorials or answers use HttpSecurity.permitAll for /register and /login but WebSecurity.ingore...