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Default string initialization: NULL or Empty? [closed]
I have always initialized my strings to NULL, with the thinking that NULL means the absence of a value and "" or String.Empty is a valid value. I have seen more examples lately of code where String.Empty is considered the default value or represents no value. This strikes me as odd, with the newly...
What is Hindley-Milner?
I encountered this term Hindley-Milner , and I'm not sure if grasp what it means.
3 Answers
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Problems with Android Fragment back stack
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Explanation: on what's going on here?
If we keep in mind that .replace() is equal with .remove().add() that we know by the documentation:
Replace an existing fragment that was added to a container. This is essentially the same as calling remove(...
Why is JavaScript called JavaScript, since it has nothing to do with Java? [closed]
Since JavaScript is not derived from Java, why does it have "Java" in the name?
10 Answers
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How do I check if a string contains another string in Objective-C?
How can I check if a string ( NSString ) contains another smaller string?
23 Answers
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Redis cache vs using memory directly
...e not used Redis yet, but I heard about it and plan to try it as cache storing.
2 Answers
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How to find where a method is defined at runtime?
..., we were good little boys and girls and ran rake test after every check-in but, due to some oddities in Rails' library loading, it only occurred when we ran it directly from Mongrel in production mode.
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Increment a value in Postgres
I'm a little new to postgres. I want to take a value (which is an integer) in a field in a postgres table and increment it by one. For example if the table 'totals' had 2 columns, 'name' and 'total', and Bill had a total of 203, what would be the SQL statement I'd use in order to move Bill's total t...
Is it possible to send an array with the Postman Chrome extension?
I've been using Postman Chrome extension to test out my API and would like to send an array of IDs via post. Is there a way to send something list this as a parameter in Postman?
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How to sort with lambda in Python
In Python, I am trying to sort by date with lambda. I can't understand my error message. The message is:
4 Answers
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