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Execute the setInterval function without delay the first time
It's there a way to configure the setInterval method of javascript to execute the method immediately and then executes with the timer
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Zip lists in Python
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Out[4]: 3
Of course, this won't work if the lists were empty to start with.
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How to download image using requests
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You can either use the response.raw file object, or iterate over the response.
To use the response.raw file-like object will not, by default, decode compressed responses (with GZIP or deflate). You can force it to decompress for you ...
SQLAlchemy: cascade delete
I must be missing something trivial with SQLAlchemy's cascade options because I cannot get a simple cascade delete to operate correctly -- if a parent element is a deleted, the children persist, with null foreign keys.
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How to prevent XSS with HTML/PHP?
How do I prevent XSS (cross-site scripting) using just HTML and PHP?
9 Answers
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How to find elements by class
I'm having trouble parsing HTML elements with "class" attribute using Beautifulsoup. The code looks like this
16 Answers
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Execute code when Django starts ONCE only?
I'm writing a Django Middleware class that I want to execute only once at startup, to initialise some other arbritary code. I've followed the very nice solution posted by sdolan here , but the "Hello" message is output to the terminal twice . E.g.
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C++ equivalent of java's instanceof
...ething();
}
This requires your compiler to have rtti support enabled.
EDIT:
I've had some good comments on this answer!
Every time you need to use a dynamic_cast (or instanceof) you'd better ask yourself whether it's a necessary thing. It's generally a sign of poor design.
Typical workarounds ...
Why can I access TypeScript private members when I shouldn't be able to?
I'm looking at implementation of private members in TypeScript, and I find it a little confusing. Intellisense doesn't allow to access private member, but in pure JavaScript, it's all there. This makes me think that TS doesn't implement private members correctly.
Any thoughts?
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Python: try statement in a single line
...no way to compress a try/except block onto a single line in Python.
Also, it is a bad thing not to know whether a variable exists in Python, like you would in some other dynamic languages. The safer way (and the prevailing style) is to set all variables to something. If they might not get set, set ...