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How to write to file in Ruby?
I need to read the data out of database and then save it in a text file.
7 Answers
7
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Pretty-print an entire Pandas Series / DataFrame
I work with Series and DataFrames on the terminal a lot. The default __repr__ for a Series returns a reduced sample, with some head and tail values, but the rest missing.
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What are some common uses for Python decorators? [closed]
...ple! No idea what it does though. An explanation what you are doing there, and how the decorator solves the problem would be very nice.
– MeLight
Jun 15 '14 at 16:00
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Why are flag enums usually defined with hexadecimal values
...orld of base ten anymore. We're dealing with bits - the machine's world - and we're gonna play by its rules." Hexadecimal is rarely used unless you're dealing with relatively low-level topics where the memory layout of data matters. Using it hints at the fact that that's the situation we're in no...
What's this =! operator? [duplicate]
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That's two operators, = and !, not one. It might be an obfuscated way of writing
a = !b;
if (a) {
// whatever
}
setting a to the logical inverse of b, and testing whether the result is true (or, equivalently, whether b was false).
Or it migh...
How to split a String by space
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I find it useful as my use case was to split the string and remove multiple spaces. One line of code does both for me.
– Niharika Upadhyay
Jul 10 '18 at 9:06
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Passing parameters to addTarget:action:forControlEvents
...etails:)
With 2 parameters indicating the control that sends the message and the event that triggered the message:
action:@selector(switchToNewsDetails:event:)
It is not clear what exactly you try to do, but considering you want to assign a specific details index to each button you can do the...
Android RatingBar change star colors [closed]
How can I change the star colors and size of the stars?
31 Answers
31
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asp.net mvc: why is Html.CheckBox generating an additional hidden input
...ed, form will still have value from hidden field. That is how ASP.NET MVC handles checkbox values.
If you want to confirm that, place a checkbox on form not with Html.Hidden, but with <input type="checkbox" name="MyTestCheckboxValue"></input>. Leave checkbox unchecked, submit form and ...
Is there a label/goto in Python?
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No, Python does not support labels and goto, if that is what you're after. It's a (highly) structured programming language.
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