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What is the difference between service, directive and module?
I have been reading a lot of docs, and I'm getting more and more confused.
I basically can't figure out the difference between a
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if (key in object) or if(object.hasOwnProperty(key)
Do the following two statements produce the same output? Is there any reason to prefer one way to the other?
7 Answers
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I just discovered why all ASP.Net websites are slow, and I am trying to work out what to do about it
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If your page does not modify any session variables, you can opt out of most of this lock.
<% @Page EnableSessionState="ReadOnly" %>
If your page does not read any session variables, you can opt out of this lock entirely, for that...
get string value from HashMap depending on key name
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Here's a tutorial about maps, you may find it useful: http://java.sun.com/docs/books/tutorial/collections/interfaces/map.html.
Edit: you edited your question with the following:
I'm expecting to see a String, such as "ABC" or "DEF" as that is what I put in there initially, but if I do a System...
How to convert a PIL Image into a numpy array?
...ith converting a PIL image object back and forth to a numpy array so I can do some faster pixel by pixel transformations than PIL's PixelAccess object would allow. I've figured out how to place the pixel information in a useful 3D numpy array by way of:
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How to use __doPostBack()
I'm trying to create an asyncrhonous postback in ASP.NET using __doPostBack() , but I have no idea how to do it. I want to use vanilla JavaScript.
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How do I handle newlines in JSON?
...\\n\\n"}';
(You need to escape the "\" in your string (turning it into a double-"\"), otherwise it will become a newline in the JSON source, not the JSON data.)
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Replace multiple characters in one replace call
Very simple little question, but I don't quite understand how to do it.
14 Answers
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How do I count unique values inside a list
...epresent this as a dict like count_dict = {'a': 2, 'b': 1, 'c': 1} you can do count_dict = dict(Counter(words).items())
– Peter
Aug 4 at 19:32
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How to use enums in C++
...ecause Days is not a scope, nor object. It is a type. And Types themselves don't have members. What you wrote is the equivalent to std::string.clear. std::string is a type, so you can't use . on it. You use . on an instance of a class.
Unfortunately, enums are magical and so the analogy stops the...