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How to concatenate columns in a Postgres SELECT?
I have two string columns a and b in a table foo .
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How to calculate the difference between two dates using PHP?
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Read error response body in Java
In Java, this code throws an exception when the HTTP result is 404 range:
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How to construct a std::string from a std::vector?
Short of (the obvious) building a C style string first then using that to create a std::string, is there a quicker/alternative/"better" way to initialize a string from a vector of chars?
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Why does this (null || !TryParse) conditional result in “use of unassigned local variable”?
The following code results in use of unassigned local variable "numberOfGroups" :
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Print current call stack from a method in Python code
In Python, how can I print the current call stack from within a method (for debugging purposes).
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Func delegate with no return type
All of the Func delegates return a value. What are the .NET delegates that can be used with methods that return void?
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Split string with multiple delimiters in Python [duplicate]
I found some answers online, but I have no experience with regular expressions, which I believe is what is needed here.
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How to count the frequency of the elements in an unordered list?
I need to find the frequency of elements in an unordered list
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Android: Generate random color on click?
I have an ImageView , in which I am programmaticly creating drawables and presenting them to the user. My goal is to click on said ImageView and change the drawable's color.
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