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Why doesn't Java offer operator overloading?
Coming from C++ to Java, the obvious unanswered question is why didn't Java include operator overloading?
16 Answers
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Removing all non-numeric characters from string in Python
How do we remove all non-numeric characters from a string in Python?
7 Answers
7
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How do I create a dictionary with keys from a list and values defaulting to (say) zero? [duplicate]
... You should probably promote that comment into your actual answer. Also, from Python 2.7 and Python 3 you can do {el:0 for el in a}. (Feel free to add that into your answer as well.)
– Zooba
Oct 6 '10 at 4:37
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What is the most efficient string concatenation method in python?
...cases. For example, I can increase my sample so that my current code goes from running at 0.17 seconds to 170 seconds. Well I want to test at larger sample sizes since there is less variation there.
– Flipper
Jan 8 '15 at 7:57
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what is the difference between ?:, ?! and ?= in regex?
..."ab".
The difference between ?: and ?= is that ?= excludes the expression from the entire match while ?: just doesn't create a capturing group. So for example a(?:b) will match the "ab" in "abc", while a(?=b) will only match the "a" in "abc". a(b) would match the "ab" in "abc" and create a capture ...
How can bcrypt have built-in salts?
...tor has been pre-configured. Collect a password.
Derive an encryption key from the password using the salt and cost factor. Use it to encrypt a well-known string. Store the cost, salt, and cipher text. Because these three elements have a known length, it's easy to concatenate them and store them in...
Why is iterating through a large Django QuerySet consuming massive amounts of memory?
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Nate C was close, but not quite.
From the docs:
You can evaluate a QuerySet in the following ways:
Iteration. A QuerySet is iterable, and it executes its database query the first time you iterate over it. For example, this will print the headline...
Where do you include the jQuery library from? Google JSAPI? CDN?
... I agree with all three of your reasons which is why I include jquery from Google on my production sites. Instead of the the js dynamic injection for SSL pages I just reference url in a script tag without the protocol specified. Seems to work fine for me. <script src="//ajax.google...">...
nodejs how to read keystrokes from stdin
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For those finding this answer since this capability was stripped from tty, here's how to get a raw character stream from stdin:
var stdin = process.stdin;
// without this, we would only get streams once enter is pressed
stdin.setRawMode( true );
// resume stdin in the parent process (no...
How to “hibernate” a process in Linux by storing its memory to disk and restoring it later?
.... And then later on, I can 'resume the process', i.e, reading all the data from memory and put it back to RAM and I can continue with my process?
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