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What is the right way to check for a null string in Objective-C?
I was using this in my iPhone app
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GroupBy pandas DataFrame and select most common value
I have a data frame with three string columns. I know that the only one value in the 3rd column is valid for every combination of the first two. To clean the data I have to group by data frame by first two columns and select most common value of the third column for each combination.
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inserting characters at the start and end of a string
I am new and trying to find a way to insert a number of L's at the beginning and end of a string. So if I have a string which says
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Declaring variables inside or outside of a loop
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How do I decode a string with escaped unicode?
I'm not sure what this is called so I'm having trouble searching for it. How can I decode a string with unicode from http\u00253A\u00252F\u00252Fexample.com to http://example.com with JavaScript? I tried unescape , decodeURI , and decodeURIComponent so I guess the only thing left is string r...
How to try convert a string to a Guid [duplicate]
I did not find the TryParse method for the Guid. I’m wondering how others handle converting a guid in string format into a guid type.
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Select tableview row programmatically
How do I programmatically select a UITableView row so that
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How to convert comma-delimited string to list in Python?
Given a string that is a sequence of several values separated by a commma:
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Why use Ruby's attr_accessor, attr_reader and attr_writer?
Ruby has this handy and convenient way to share instance variables by using keys like
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Programmatically get height of navigation bar
I know that the presence of the more view controller (navigation bar) pushes down the UIView by its height. I also know that this height = 44px. I have also discovered that this push down maintains the [self.view].frame.origin.y = 0 .
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