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Create an empty list in python with certain size
I want to create an empty list (or whatever is the best way) that can hold 10 elements.
15 Answers
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How to drop rows of Pandas DataFrame whose value in a certain column is NaN
...olumn_name']). Hope that saves at least one person the extra 5 seconds of 'what am I doing wrong'. Great answer, +1
– James Tobin
Jun 18 '14 at 14:07
10
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How can I safely encode a string in Java to use as a filename?
... approach, meaning don't try and filter out bad characters. Instead define what is OK. You can either reject the filename or filter it. If you want to filter it:
String name = s.replaceAll("\\W+", "");
What this does is replaces any character that isn't a number, letter or underscore with nothing...
Calling virtual functions inside constructors
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In what way is calling a virtual function from a constructor "dangerous"? This is total nonsense.
– Lightness Races in Orbit
Sep 5 '16 at 20:49
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Signed versus Unsigned Integers
...uld require more instructions and generally be a waste of processor time.
What do I mean by "native support"? Basically I mean that there are a set of instructions you use for unsigned numbers and another set that you use for signed numbers. Unsigned numbers can sit in the same registers as signed ...
How to print without newline or space?
I'd like to do it in python . What I'd like to do in this example in c :
22 Answers
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Android global variable
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What if activity paused and user started another application and during that memeory was low thats why android removed this static object when user resume application and found this static reference null ???
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Circular dependency in Spring
...that bean injection / property setting might occur in a different order to what your XML wiring files would seem to imply. So you need to be careful that your property setters don't do initialization that relies on other setters already having been called. The way to deal with this is to declare b...
What does the forward slash mean in the CSS font shorthand?
....new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f4080265%2fwhat-does-the-forward-slash-mean-in-the-css-font-shorthand%23new-answer', 'question_page');
}
);
Post as a guest
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float:left; vs display:inline; vs display:inline-block; vs display:table-cell;
...rials. Couple of questions: Is this actually tested in different browsers? What's your method of choice to draw separator between two blocks such as nav and content? The reason I ask is because if above divs are of different height it would be difficult.
– Shital Shah
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