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Multiple columns index when using the declarative ORM extension of sqlalchemy
According to the documentation and the comments in the sqlalchemy.Column class, we should use the class sqlalchemy.schema.Index to specify an index that contains multiple columns.
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How can I convert tabs to spaces in every file of a directory?
How can I convert tabs to spaces in every file of a directory (possibly recursively)?
19 Answers
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How do I print out the contents of an object in Rails for easy debugging?
I think I'm trying to get the PHP equivalent of print_r() (print human-readable); at present the raw output is:
8 Answers...
How to remove all the occurrences of a char in c++ string
I am using following:
10 Answers
10
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Which equals operator (== vs ===) should be used in JavaScript comparisons?
I'm using JSLint to go through JavaScript, and it's returning many suggestions to replace == (two equals signs) with === (three equals signs) when doing things like comparing idSele_UNVEHtype.value.length == 0 inside of an if statement.
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How can I make Vim's `J` and `gq` commands use one space after a period?
When I use Vim's J command, most lines are joined with a single space for padding. But after a period Vim always uses two spaces. Take the following example:
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What rules does Pandas use to generate a view vs a copy?
I'm confused about the rules Pandas uses when deciding that a selection from a dataframe is a copy of the original dataframe, or a view on the original.
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How do you create optional arguments in php?
In the PHP manual, to show the syntax for functions with optional parameters, they use brackets around each set of dependent optional parameter. For example, for the date() function, the manual reads:
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Is it possible to delete an object's property in PHP?
If I have an stdObject say, $a .
4 Answers
4
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Using a constant NSString as the key for NSUserDefaults
I'm using NSUSerDefaults to store user preferences. I remember reading somewhere that setting the keys as constants is a good idea - and I agree. The following code is what I currently have:
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