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Rails: Why does find(id) raise an exception in rails? [duplicate]
If there is no user with an id of 1 in the database, trying User.find(1) will raise an exception.
2 Answers
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Scala: What is a TypeTag and how do I use it?
All I know about TypeTags is that they somehow replaced Manifests. Information on the Internet is scarce and doesn't provide me with a good sense of the subject.
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Java Set retain order?
Does a Java Set retain order? A method is returning a Set to me and supposedly the data is ordered but iterating over the Set, the data is unordered. Is there a better way to manage this? Does the method need to be changed to return something other than a Set?
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Remove trailing newline from the elements of a string list
I have to take a large list of words in the form:
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Simple way to find if two different lists contain exactly the same elements?
What is the simplest way to find if two Lists contain exactly the same elements, in the standard Java libraries?
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Volatile vs Static in Java
Is it correct to say that static means one copy of the value for all objects and volatile means one copy of the value for all threads?
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Single huge .css file vs. multiple smaller specific .css files? [closed]
Is there any advantage to having a single monster .css file that contains style elements that will be used on almost every page?
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Git commit with no commit message
How can I commit changes without specifying commit message? Why is it required by default?
9 Answers
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PhoneGap: Detect if running on desktop browser
...ile versions. I want to be able to detect if PhoneGap calls will work (ie, is the user on a mobile device that will support PhoneGap).
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A fast method to round a double to a 32-bit int explained
...a double to a 32-bit int . I extracted the macro , and it looks like this:
3 Answers
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