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Regex expressions in Java, \\s vs. \\s+
...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 times
X{n,} X, at least n times
X{n,m}...
How to format a float in javascript?
.....or just use toFixed, as proposed by Tim Büthe. Forgot that one, thanks (and an upvote) for reminder :)
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How do I update if exists, insert if not (AKA “upsert” or “merge”) in MySQL?
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@blub: If you create a unique key on geb and topic it will work (ALTER TABLE table ADD UNIQUE geb_by_topic (geb, topic)).
– chaos
Aug 2 '09 at 13:43
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How to re-raise an exception in nested try/except blocks?
... produced will include an additional notice that SomeError occurred while handling AlsoFailsError (because of raise e being inside except AlsoFailsError). This is misleading because what actually happened is the other way around - we encountered AlsoFailsError, and handled it, while trying to recove...
How to generate string of a certain length to insert into a file to meet a file size criteria?
...utomatically generate the files. I know the size of each file, ex. 100KB, and how many files to generate. What I need help with is how to generate a string less than or equal to the required file size.
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Undo git update-index --skip-worktree
...git-update-index.html, use
git ls-files -v
to see the "assume unchanged" and "skip-worktree" files marked with a special letter. The "skip-worktree" files are marked with S.
Edit: As @amacleod mentioned, making an alias to list all the hidden files is a nice trick to have so that you don't need t...
How to compile a 64-bit application using Visual C++ 2010 Express?
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Here are step by step instructions:
Download and install the Windows Software Development Kit version 7.1. Visual C++ 2010 Express does not include a 64 bit compiler, but the SDK does. A link to the SDK: http://msdn.microsoft.com/en-us/windowsserver/bb980924.aspx
Change...
How to check if APK is signed or “debug build”?
As far as I know, in android "release build" is signed APK. How to check it from code or does Eclipse has some kinda of secret defines?
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postgresql - replace all instances of a string within text field
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Hi guys, I like your answer and explanation, it is really helpful. Could you please add an example using regexp_replace? Thanks!
– Wim Feijen
Oct 22 '14 at 16:09
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String.Replace ignoring case
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You could use a Regex and perform a case insensitive replace:
class Program
{
static void Main()
{
string input = "hello WoRlD";
string result =
Regex.Replace(input, "world", "csharp", RegexOptions.IgnoreCase);...