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What is the difference between ? and Object in Java generics?
...elp me clean up some code to use Java generics properly. Most of the time it's doing an excellent job of inferring types, but there are some cases where the inferred type has to be as generic as possible: Object. But Eclipse seems to be giving me an option to choose between a type of Object and a ...
Which is faster: multiple single INSERTs or one multiple-row INSERT?
... Inserting indexes: (1 × number of indexes)
Closing: (1)
From this it should be obvious, that sending one large statement will save you an overhead of 7 per insert statement, which in further reading the text also says:
If you are inserting many rows from the same client at the same time...
How to re-sign the ipa file?
How do I sign the .ipa file with a provisioning profile after I generate an IPA like the following with a different provision profile? I would like to sign the IPA with an ad-hoc provisioning profile for beta testing, and then re-sign the exact IPA with an app submission provisioning profile for the...
What is your single most favorite command-line trick using Bash? [closed]
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Renaming/moving files with suffixes quickly:
cp /home/foo/realllylongname.cpp{,-old}
This expands to:
cp /home/foo/realllylongname.cpp /home/foo/realllylongname.cpp-old
sh...
How to read a local text file?
I’m trying to write a simple text file reader by creating a function that takes in the file’s path and converts each line of text into a char array, but it’s not working.
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How to check whether an object is a date?
...te.getMonth === 'function'
you can use the instanceof operator, i.e. But it will return true for invalid dates too, e.g. new Date('random_string') is also instance of Date
date instanceof Date
This will fail if objects are passed across frame boundaries.
A work-around for this is to check the ...
How can I transition height: 0; to height: auto; using CSS?
I am trying to make a <ul> slide down using CSS transitions.
51 Answers
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The $.param( ) inverse function in JavaScript / jQuery
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You should use jQuery BBQ's deparam function. It's well-tested and documented.
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How can I initialize a C# List in the same line I declare it. (IEnumerable string Collection Example
I am writing my testcode and I do not want wo write:
8 Answers
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How can I force a hard reload in Chrome for Android
...ons to manually do a hard reload when long clicking on the reload button (with dev tools open).
18 Answers
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