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What's the best way of implementing a thread-safe Dictionary?
...er handler = ItemAdded;
if (handler != null)
handler(this, e);
}
// more IDictionary members...
}
Edit: The MSDN docs point out that enumerating is inherently not thread safe. That can be one reason for exposing a synchronization object outside your class. Another wa...
How to check if std::map contains a key without doing insert?
The only way I have found to check for duplicates is by inserting and checking the std::pair.second for false , but the problem is that this still inserts something if the key is unused, whereas what I want is a map.contains(key); function.
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How to compute the similarity between two text documents?
...
The common way of doing this is to transform the documents into TF-IDF vectors and then compute the cosine similarity between them. Any textbook on information retrieval (IR) covers this. See esp. Introduction to Information Retrieval, which is free a...
Reverting a single file to a previous version in git [duplicate]
Is there a way to go through different commits on a file.
Say I modified a file 5 times and I want to go back to change 2, after I already committed and pushed to a repository.
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How to check the extension of a filename in a bash script?
I am writing a nightly build script in bash.
Everything is fine and dandy except for one little snag:
9 Answers
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Error-Handling in Swift-Language
I haven't read too much into Swift but one thing I noticed is that there are no exceptions.
So how do they do error handling in Swift? Has anyone found anything related to error-handling?
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How to quickly and conveniently create a one element arraylist [duplicate]
Is there a Utility method somewhere that can do this in 1 line? I can't find it anywhere in Collections , or List .
8 Ans...
LINQPad [extension] methods [closed]
Does anyone have a complete list of LINQPad extension methods and methods, such as
4 Answers
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How to convert String to Long in Kotlin?
...r and returns the result.
@throws NumberFormatException if the string is not a valid
representation of a number.
2. string.toLongOrNull()
Parses the string as a [Long] number and returns the result or null
if the string is not a valid representation of a number.
3. str.toLong(10)
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Remove sensitive files and their commits from Git history
...ith sensitive data (usernames and passwords, like /config/deploy.rb for capistrano).
11 Answers
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