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What's the best way of scraping data from a website? [closed]
...nd what data formats make up the responses.
You will need a good working knowledge of HTTP as well as HTML and will probably want to find a decent piece of man in the middle proxy software. You will need to be able to inspect HTTP requests and responses and understand how the cookies and session in...
What is the most efficient way to concatenate N arrays?
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This answer is particularly useful when N is not known ahead of time such as when you have an array of arrays of arbitrary length and you want them all concatenated.
– jfriend00
Jul 9 '16 at 16:05
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unobtrusive validation not working with dynamic content
...inal answer) and submitting a pull request to fix it. This information is now visible in the client side validation section of the model validation topic.
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Why 0 is true but false is 1 in the shell?
...ntion, but a particularly useful one when you think about it. In general, if a program succeeds that's all you need to know. If it fails, however, you might need to know all kinds of information about the failure - why it happened, how to fix it, etc. Having zero mean 'success' and non-zero mean f...
Image comparison - fast algorithm
... in computer vision, keypoint matching. This may require some background knowledge to implement, and can be slow.
The second method uses only elementary image processing, and is potentially faster than the first approach, and is straightforward to implement. However, what it gains in understandabi...
What is Linux’s native GUI API?
...Window defines a network protocol for communication, and any program that knows how to "speak" this protocol can use it. There is a C library called Xlib that makes it easier to use this protocol, so Xlib is kind of the native GUI API. Xlib is not the only way to access an X Window server; there is ...
Mixing a PHP variable with a string literal
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how to embed a ternary operator that evaluates to two diff strings in a string?
– oldboy
Jul 27 '19 at 7:23
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“open/close” SqlConnection or keep open?
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Disclaimer: I know this is old, but I found an easy way to demonstrate this fact, so I'm putting in my two cents worth.
If you're having trouble believing that the pooling is really going to be faster, then give this a try:
Add the follow...
Javascript Shorthand for getElementById
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It makes no difference how many libraries use $ if you never load them.
– user113716
Jun 19 '11 at 17:04
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What is the preferred syntax for initializing a dict: curly brace literals {} or the dict() function
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Curly braces. Passing keyword arguments into dict(), though it works beautifully in a lot of scenarios, can only initialize a map if the keys are valid Python identifiers.
This works:
a = {'import': 'trade', 1: 7.8}
a = dict({'import': 'trade', 1: 7.8})
This won't work:
a = ...