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Check if a value exists in pandas dataframe index
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@MaximG What do you mean? This works for a non-unique index as well.
– joris
Jul 30 '15 at 15:40
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What does $1 [QSA,L] mean in my .htaccess file?
...new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f12551382%2fwhat-does-1-qsa-l-mean-in-my-htaccess-file%23new-answer', 'question_page');
}
);
Post as a guest
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How to make a HTTP request using Ruby on Rails?
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what does the 'req' mean here?
– sixty4bit
Sep 4 '14 at 15:20
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Why do I need to override the equals and hashCode methods in Java?
...ap, HashSet, and Hashtable.
Let's try to understand it with an example of what would happen if we override equals() without overriding hashCode() and attempt to use a Map.
Say we have a class like this and that two objects of MyClass are equal if their importantField is equal (with hashCode() and e...
How to make space between LinearLayout children?
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I'm not really clear on what you mean by this. I should define the customview in xml? But I will need to dynamically create an arbitrary number of custom views, which I will then add to my LinearLayout.
– ab11
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Is it better to return null or empty collection?
That's kind of a general question (but I'm using C#), what's the best way (best practice), do you return null or empty collection for a method that has a collection as a return type ?
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ActiveRecord: List columns in table from console
...rd. Crucially for me it was the only and easiest way to gain confidence in what my primary key really was at the database level.
– nibbex
Mar 11 '15 at 17:30
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Force Intellij IDEA to reread all maven dependencies
...ncies from their repositories. The status bar informs about the process.
What lets you think that this is not working correctly? Maybe any of the dependencies can't be load from the repository?
share
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Calling C++ class methods via a function pointer
...not mistaken (and I might be), this is just being used to demonstrate that whatever you apply .* to should be a pointer to an instance of the (sub)class. However this is new syntax to me I'm only guessing based on other answers and resources linked here. I'm suggesting an edit to make that more cl...
Clone Object without reference javascript [duplicate]
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I wanted to point what is maybe not clear : you can't iterate on own properties of A like you do on obj. But I agree that, depending on what OP wants to do with his objects, this may be a solution.
– Denys Séguret
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