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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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Regular expression for first and last name
For website validation purposes, I need first name and last name validation.
23 Answers
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How does Java Garbage Collection work with Circular References?
From my understanding, garbage collection in Java cleans up some objects if nothing else is 'pointing' to that object.
8 An...
mongoDB/mongoose: unique if not null
I was wondering if there is way to force a unique collection entry but only if entry is not null .
e
Sample schema:
4 Answ...
How can I recall the argument of the previous bash command?
Is there a way in Bash to recall the argument of the previous command?
7 Answers
7
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Find the similarity metric between two strings
How do I get the probability of a string being similar to another string in Python?
10 Answers
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Bootstrap select dropdown list placeholder
...port placeholder="stuff" as other forms do. Is there a different way to obtain a placeholder in my dropdown?
19 Answers
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Changing column names of a data frame
I have a data frame called "newprice" (see below) and I want to change the column names in my program in R.
16 Answers
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Is it intended by the C++ standards committee that in C++11 unordered_map destroys what it inserts?
I've just lost three days of my life tracking down a very strange bug where unordered_map::insert() destroys the variable you insert. This highly non-obvious behaviour occurs in very recent compilers only: I found that clang 3.2-3.4 and GCC 4.8 are the only compilers to demonstrate this "feature"....