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What does Html.HiddenFor do?
Although I have read the documentation on Html.HiddenFor, I've not grasped what is it used for...
4 Answers
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Best way to use html5 data attributes with rails content_tag helper?
The issue, of course, is that ruby symbols don't like hyphens. So something like this obviously won't work:
6 Answers
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Xcode 4 and Core Data: How to enable SQL Debugging
I'm working on a universal iOS app and I'd like to see the raw SQL in the logs when I'm debugging. There is some info in this blog post about how to enable raw SQL logging for iOS Core Data development. The given example is for Xcode 3 and it's just not clear to me how to enable this in Xcode 4.
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In Eclipse, can I have multiple Console views at once, each showing a different Console?
I'm working on some applications that, in debug mode, log to the console. I'd like to run and debug them from inside of Eclipse, and view the console for each one simultaneously. However, I have a single Console tab that shows a single Console output at a time. Is there a way I can split the console...
How to write a JSON file in C#?
I need to write the following data into a text file using JSON format in C#. The brackets are important for it to be valid JSON format.
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Search for “does-not-contain” on a DataFrame in pandas
I've done some searching and can't figure out how to filter a dataframe by df["col"].str.contains(word) , however I'm wondering if there is a way to do the reverse: filter a dataframe by that set's compliment. eg: to the effect of !(df["col"].str.contains(word)) .
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How to convert a boolean array to an int array
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Numpy arrays have an astype method. Just do y.astype(int).
Note that it might not even be necessary to do this, depending on what you're using the array for. Bool will be autopromoted to int in many cases, so you can add it ...
How can I determine the current line number in JavaScript?
Does JavaScript have a mechanism for determining the line number of the currently executing statement (and if so, what is it)?
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error: writable atomic property cannot pair a synthesized setter/getter with a user defined setter/g
I recently tried to compile an older Xcode project (which used to compile just fine), and now I'm seeing a lot of errors of this form:
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What is the difference between `raise “foo”` and `raise Exception.new(“foo”)`?
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Technically, the first raises a RuntimeError with the message set to "foo", and the second raises an Exception with the message set to "foo".
Practically, there is a significant difference between when you would want to use the former and when you want to use t...