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How to count the frequency of the elements in an unordered list?

I need to find the frequency of elements in an unordered list 33 Answers 33 ...
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How to copy a dictionary and only edit the copy

Can someone please explain this to me? This doesn't make any sense to me. 20 Answers 2...
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What requirement was the tuple designed to solve?

I'm looking at the new C# feature of tuples. I'm curious, what problem was the tuple designed to solve? 13 Answers ...
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How would you count occurrences of a string (actually a char) within a string?

I am doing something where I realised I wanted to count how many / s I could find in a string, and then it struck me, that there were several ways to do it, but couldn't decide on what the best (or easiest) was. ...
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Repeat String - Javascript

What is the best or most concise method for returning a string repeated an arbitrary amount of times? 30 Answers ...
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Is asynchronous jdbc call possible?

I wonder if there is a way to make asynchronous calls to a database? 16 Answers 16 ...
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Counting the number of elements with the values of x in a vector

I have a vector of numbers: 18 Answers 18 ...
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How to use php serialize() and unserialize()

My problem is very basic. 10 Answers 10 ...
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What is the difference between a weak reference and an unowned reference?

Swift has: 7 Answers 7 ...
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What's the nearest substitute for a function pointer in Java?

I have a method that's about ten lines of code. I want to create more methods that do exactly the same thing, except for a small calculation that's going to change one line of code. This is a perfect application for passing in a function pointer to replace that one line, but Java doesn't have func...