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What's a quick way to test to see a file exists?
I want to quickly check to see if a file exists in my iPhone app's Documents directory (or any path for that matter). I can enumerate through the directory's files, or I can try to open a specific file. What's the fastest way? I just need to know if the file is there or if it does not exist.
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setting multiple column using one update
How to set multiple columns of a table using update query in mysql?
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XPath: How to check if an attribute exists?
Given the following XML, how do I write an XPath query to pull nodes where the attribute foo exists?:
3 Answers
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LINQ query to return a Dictionary
I have a collection of MyClass that I'd like to query using LINQ to get distinct values, and get back a Dictionary as the result, but I can't figure out how I can do it any simpler than I'm doing below. What would some cleaner code be that I can use to get the Dictionary as my result?
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PHP sprintf escaping %
I want the following output:-
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GROUP_CONCAT comma separator - MySQL
I have a query where I am using GROUP_CONCAT and a custom separator as my results may contain commas: '----'
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Avoiding memory leaks with Scalaz 7 zipWithIndex/group enumeratees
Background
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How can sbt pull dependency artifacts from git?
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Yes indeed. You can give your Project a dependency with the dependsOn operator, and you can reference a Github project by its URI, for example RootProject(uri("git://github.com/dragos/dupcheck.git")). Alternatively, you can git clone the p...
Get line number while using grep
I am using grep recursive to search files for a string, and all the matched files and the lines containing that string are print on the terminal. But is it possible to get the line numbers of those lines too??
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How to find which rspec test is taking so long
One (or a couple) of our tests are taking forever and we'd like to optimize them.
1 Answer
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