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Why does typeof NaN return 'number'?
...N as at least one operand
Indeterminate forms
The divisions 0/0, ∞/∞, ∞/−∞, −∞/∞, and −∞/−∞
The multiplications 0×∞ and 0×−∞
The power 1^∞
The additions ∞ + (−∞), (−∞) + ∞ and equivalent subtractions.
Real operations with...
CSS - How to Style a Selected Radio Buttons Label?
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303
.radio-toolbar input[type="radio"] {
display: none;
}
.radio-toolbar label {
disp...
Replace values in list using Python [duplicate]
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207
Build a new list with a list comprehension:
new_items = [x if x % 2 else None for x in items]
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CentOS 64 bit bad ELF interpreter
...OURAPPNAME)
The output will look like this:
linux-gate.so.1 => (0xf7760000)
libpthread.so.0 => /lib/libpthread.so.0 (0xf773e000)
libSM.so.6 => not found
Check for missing libraries (e.g. libSM.so.6 in the above output), and for each one you need to find the package that pr...
Is returning by rvalue reference more efficient?
...O to omit doing a move or copy altogether. I recommend you to read BoostCon09 Rvalue References 101 which explains the matter, and how (N)RVO happens to interact with this.
Your case of returning an rvalue reference would be a good idea in other occasions. Imagine you have a getAB() function whic...
SQLite table constraint - unique on multiple columns
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answered Apr 23 '10 at 20:50
Ayman HouriehAyman Hourieh
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Can I serve multiple clients using just Flask app.run() as standalone?
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305
flask.Flask.run accepts additional keyword arguments (**options) that it forwards to werkzeug.s...
What values should I use for CFBundleVersion and CFBundleShortVersionString?
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answered Nov 1 '13 at 14:04
rmaddyrmaddy
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Does ARC support dispatch queues?
... now for the long answer…
If your deployment target is lower than iOS 6.0 or Mac OS X 10.8
You need to use dispatch_retain and dispatch_release on your queue. ARC does not manage them.
If your deployment target is iOS 6.0 or Mac OS X 10.8 or later
ARC will manage your queue for you. You do ...
What is the “__v” field in Mongoose
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edited Dec 14 '16 at 11:04
Pierre
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answered Sep 1...