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Which characters are valid in CSS class names/selectors?
...haracters and any ISO 10646
character as a numeric code (see next item). For instance, the
identifier "B&W?" may be written as "B\&W\?" or "B\26 W\3F".
Identifiers beginning with a hyphen or underscore are typically reserved for browser-specific extensions, as in -moz-opacity.
1 It's ...
hasNext in Python iterators?
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"It's easier to ask for forgiveness than permission."
– Roger Pate
Dec 27 '09 at 18:57
124
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How do I access the request object or any other variable in a form's clean() method?
I am trying to request.user for a form's clean method, but how can I access the request object? Can I modify the clean method to allow variables input?
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TypeScript typed array usage
...re not giving me errors.
It is also the suggested method from typescript for array declaration.
By using the Array<Thing> it is making use of the generics in typescript. It is similar to asking for a List<T> in c# code.
// Declare with default value
private _possessions: Array<T...
Alternatives to gprof [closed]
... As Mike Dunlavey recommends, Valgrind counts the fraction of instructions for which a procedure is live on the stack, although I'm sorry to say it appears to become confused in the presence of mutual recursion. But the visualizer is very nice and light years ahead of gprof.
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Preserving signatures of decorated functions
Suppose I have written a decorator that does something very generic. For example, it might convert all arguments to a specific type, perform logging, implement memoization, etc.
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When to use setAttribute vs .attribute= in JavaScript?
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You should always use the direct .attribute form (but see the quirksmode link below) if you want programmatic access in JavaScript. It should handle the different types of attributes (think "onload") correctly.
Use getAttribute/setAttribute when you wish to deal with ...
Why does “pip install” inside Python raise a SyntaxError?
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Thanks for the clarification, but I still can't get it to run. Where exactly is it? It is giving me a "pip is not recognized" error (because I'm not the right dir). It was installed in \site-packages but I'm looking thought it and I...
round() for float in C++
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there is also lround and llround for integral results
– sp2danny
Feb 23 '15 at 11:55
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Add spaces before Capital Letters
...ringHasNoSpacesButItDoesHaveCapitals" what is the best way to add spaces before the capital letters. So the end string would be "This String Has No Spaces But It Does Have Capitals"
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