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When to use in vs ref vs out
...ord out instead of ref . While I (I think) understand the difference between the ref and out keywords (that has been asked before ) and the best explanation seems to be that ref == in and out , what are some (hypothetical or code) examples where I should always use out and not ref . ...
What are the differences between Rust's `String` and `str`?
Why does Rust have String and str ? What are the differences between String and str ? When does one use String instead of str and vice versa? Is one of them getting deprecated?
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Purpose of #!/usr/bin/python3
... start with #!/usr/bin/python3 on the first line. I don't understand why we have this.
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How to compute the similarity between two text documents?
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Is it expensive to use try-catch blocks even if an exception is never thrown?
We know that it is expensive to catch exceptions. But, is it also expensive to use a try-catch block in Java even if an exception is never thrown?
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Conditionally ignoring tests in JUnit 4
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