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How can you undo the last git add?
...valid ref. I haven't committed anything yet (new repo) just done git add . and regretted it. I don't want to reset the entire add, just one directory. git reset -- dir/*.* generates the error above.
– Francis Davey
Jan 23 '14 at 17:51
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Rails: Using build with a has_one association in rails
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The build method signature is different for has_one and has_many associations.
class User < ActiveRecord::Base
has_one :profile
has_many :messages
end
The build syntax for has_many association:
user.messages.build
The build syntax for has_one association:
user.bu...
How can I write a regex which matches non greedy? [duplicate]
...o a trick you can do to work around this: Since \s means "any whitespace", and "\S" means "any non-whitespace", [\s\S] will match ANY character (like ".", but including new line)! Similarly, you could use [\d\D], or [\w\W]. This can be quite a handy little "hack", and it certainly a very useful tric...
Does Notepad++ show all hidden characters?
... *Show All Characters`
or
Menu View → Show Symbol → Show White Space and TAB
(Thanks to bers' comment and bkaid's answers below for these updated locations.)
On older versions you can look for:
Menu View → Show all characters
or
Menu View → Show White Space and TAB
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No @XmlRootElement generated by JAXB
...der to marshal/unmarshal a given object, specifically the XML element name and namespace. You can't just pass any old object to the Marshaller. @XmlRootElement provides this information.
The annotation is just a convenience, however - JAXB does not require it. The alternative to is to use JAXBEleme...
Reconnection of Client when server reboots in WebSocket
I am using web socket using PHP5 and the Chrome browser as client.
I have taken the code from the site http://code.google.com/p/phpwebsocket/ .
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How to use a decimal range() step value?
Is there a way to step between 0 and 1 by 0.1?
33 Answers
33
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JavaScript regex multiline flag doesn't work
...d news is that you can work around it by using a character class (e.g. \s) and its negation (\S) together, like this:
[\s\S]
So in your case the regex would become:
/<div class="box-content-5">[\s\S]*<h1>([^<]+?)<\/h1>/i
As of ES2018, JavaScript supports the s (dotAll) f...
What is the difference between '>' and a space in CSS selectors?
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> is the child selector. It specifies only immediate child elements and not any descendant (including grandchildren, grand-grandchildren etc.) as in the second example without the >.
The child selector is not supported by IE 6 and lower. A great compatibility table is here.
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Why does TestInitialize get fired for every test in my Visual Studio unit tests?
...ot a single [TestClass] , which has a [TestInitialize] , [TestCleanup] and a few [TestMethods] .
4 Answers
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