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How to use OR condition in a JavaScript IF statement?
I understand that in JavaScript you can write:
11 Answers
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How to find where a method is defined at runtime?
...d occurred, a backend process failed to run. Now, we were good little boys and girls and ran rake test after every check-in but, due to some oddities in Rails' library loading, it only occurred when we ran it directly from Mongrel in production mode.
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Set environment variables on Mac OS X Lion
... idea where these files are, how to create them if I have to do that, etc, and also why there seem to be so many different ones (why? Do they do different things?)
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How do you create a random string that's suitable for a session ID in PostgreSQL?
I'd like to make a random string for use in session verification using PostgreSQL. I know I can get a random number with SELECT random() , so I tried SELECT md5(random()) , but that doesn't work. How can I do this?
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What is a Context Free Grammar?
...to me what a context free grammar is? After looking at the Wikipedia entry and then the Wikipedia entry on formal grammar, I am left utterly and totally befuddled. Would someone be so kind as to explain what these things are?
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nil detection in Go
...mpiler is pointing the error to you, you're comparing a structure instance and nil. They're not of the same type so it considers it as an invalid comparison and yells at you.
What you want to do here is to compare a pointer to your config instance to nil, which is a valid comparison. To do that you...
Should I use px or rem value units in my CSS? [closed]
I am designing a new website and I want it to be compatible with as much browsers and browser settings as possible. I am trying to decide what unit of measurement I should use for the sizes of my fonts and elements, but am unable to find a conclusive answer.
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SQL SELECT WHERE field contains words
...e present, use this:
SELECT * FROM mytable
WHERE column1 LIKE '%word1%'
AND column1 LIKE '%word2%'
AND column1 LIKE '%word3%'
If you want something faster, you need to look into full text search, and this is very specific for each database type.
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What's the difference between @Secured and @PreAuthorize in spring security 3?
...can work with Spring Expression Language (SpEL). You can:
Access methods and properties of SecurityExpressionRoot.
Access method arguments (requires compilation with debug info or custom ParameterNameDiscoverer):
@PreAuthorize("#contact.name == principal.name")
public void doSomething(Contact con...
Using i and j as variables in Matlab
i and j are very popular variable names (see e.g., this question and this one ).
9 Answers
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