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Rails Migration: Remove constraint
I have a table in a Rails application which (in schema.rb) looks like:
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rspec 3 - stub a class method
I am upgrading from rspec 2.99 to rspec 3.0.3 and have converted instance methods to use allow_any_instance_of , but haven't figured out how to stub a class method. I have code like this:
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python dataframe pandas drop column using int
...//pandas.pydata.org/pandas-docs/stable/reference/api/pandas.DataFrame.drop.html?highlight=drop#pandas.DataFrame.drop
Instance v state variables in react.js
In react.js, is it better to store a timeout reference as an instance variable (this.timeout) or a state variable (this.state.timeout)?
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What is the Bash equivalent of Python's pass statement
Is there a Bash equivalent to the Python's pass statement?
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Start a git commit message with a hashmark (#)
Git treats lines starting with # as comment lines when committing. this is very annoying when working with a ticket tracking system, and trying to write the ticket number at the beginning of the line, e.g.
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Find substring in the string in TWIG
...googled and searched this issue in stackoverflow but nothing found. Does someone know how to solve this problem?
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What is the “hasClass” function with plain JavaScript?
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alert("Grid section");
// code...
}
<!--2. Add a class in the .html:-->
<div class="section-name section-filter">...</div>
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Java regular expression OR operator
This may be a dumb question, but I couldn't find it anywhere:
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How to convert std::string to NSString?
Hi I am trying to convert a standard std::string into an NSString but I'm not having much luck.
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