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What's the difference between git clone --mirror and git clone --bare
The git clone help page has this to say about --mirror :
7 Answers
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open() in Python does not create a file if it doesn't exist
What is the best way to open a file as read/write if it exists, or if it does not, then create it and open it as read/write? From what I read, file = open('myfile.dat', 'rw') should do this, right?
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conditional unique constraint
I have a situation where i need to enforce a unique constraint on a set of columns, but only for one value of a column.
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Objective-C: Reading a file line by line
What is the appropriate way of dealing with large text files in Objective-C? Let's say I need to read each line separately and want to treat each line as an NSString. What is the most efficient way of doing this?
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How should I choose an authentication library for CodeIgniter? [closed]
I see there are a few . Which ones are maintained and easy to use? What are their pros and cons?
11 Answers
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Java SafeVarargs annotation, does a standard or best practice exist?
I've recently come across the java @SafeVarargs annotation. Googling for what makes a variadic function in Java unsafe left me rather confused (heap poisoning? erased types?), so I'd like to know a few things:
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Why use the yield keyword, when I could just use an ordinary IEnumerable?
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8 Answers
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Why is there no Constant feature in Java?
I was trying to identify the reason behind constants in Java
I have learned that Java allows us to declare constants by using final keyword.
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Algorithm to return all combinations of k elements from n
I want to write a function that takes an array of letters as an argument and a number of those letters to select.
71 Answe...
Java 8 Streams - collect vs reduce
When would you use collect() vs reduce() ? Does anyone have good, concrete examples of when it's definitely better to go one way or the other?
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