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What is the meaning of single and double underscore before an object name?
Can someone please explain the exact meaning of having leading underscores before an object's name in Python, and the difference between both?
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Counting null and non-null values in a single query
I have a table
26 Answers
26
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Difference between toFixed() and toPrecision()?
I'm new to JavaScript and just discovered toFixed() and toPrecision() to round numbers. However, I can't figure out what the difference between the two is.
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Test if characters are in a string
I'm trying to determine if a string is a subset of another string. For example:
9 Answers
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How do ACID and database transactions work?
What is the relationship between ACID and database transaction?
8 Answers
8
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Determining if a number is either a multiple of ten or within a particular set of ranges
I have a few loops that I need in my program. I can write out the pseudo code, but I'm not entirely sure how to write them logically.
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How to test if list element exists?
I would like to test if an element of a list exists, here is an example
7 Answers
7
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What's valid and what's not in a URI query?
I've been Googling this back and forth reading RFCs and SO questions trying to crack this, but I still don't got jack.
7 An...
How can you do anything useful without mutable state?
I've been reading a lot of stuff about functional programming lately, and I can understand most of it, but the one thing I just can't wrap my head around is stateless coding. It seems to me that simplifying programming by removing mutable state is like "simplifying" a car by removing the dashboard:...
Is Ruby pass by reference or by value?
@user object adds errors to the lang_errors variable in the update_lanugages method.
when I perform a save on the @user object I lose the errors that were initially stored in the lang_errors variable.
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