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How to add to an existing hash in Ruby
In regards to adding an key => value pair to an existing populated hash in Ruby, I'm in the process of working through Apress' Beginning Ruby and have just finished the hashes chapter.
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How can I sort arrays and data in PHP?
How do I sort an array in PHP?
How do I sort a complex array in PHP?
How do I sort an array of objects in PHP?
12 Ans...
Difference between MEAN.js and MEAN.io
I wanted to use the MEAN JavaScript Stack, but I noticed that there are two different stacks with either their own website and installation methods: mean.js and mean.io. So I came up asking myself this question: "Which one do I use?".
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Compare floats in php
I want to compare two floats in PHP, like in this sample code:
16 Answers
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Get JavaScript object from array of objects by value of property [duplicate]
Let's say I have an array of four objects:
17 Answers
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How to sort a dataframe by multiple column(s)
I want to sort a data.frame by multiple columns. For example, with the data.frame below I would like to sort by column z (descending) then by column b (ascending):
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How to return multiple objects from a Java method?
I want to return two objects from a Java method and was wondering what could be a good way of doing so?
25 Answers
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pandas GroupBy columns with NaN (missing) values
I have a DataFrame with many missing values in columns which I wish to groupby:
9 Answers
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Difference between \w and \b regular expression meta characters
Can anyone explain the difference between \b and \w regular expression metacharacters? It is my understanding that both these metacharacters are used for word boundaries. Apart from this, which meta character is efficient for multilingual content?
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Python: TypeError: cannot concatenate 'str' and 'int' objects [duplicate]
I have this python program that adds strings to integers:
9 Answers
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