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What's to stop malicious code from spoofing the “Origin” header to exploit CORS?
...est that manually sets the Origin header, but this request would come from outside a browser, and may not have browser-specific info (such as cookies).
Remember: CORS is not security. Do not rely on CORS to secure your site. If you are serving protected data, use cookies or OAuth tokens or somethin...
What's the difference between equal?, eql?, ===, and ==?
...rridden in other classes, like String.
Side note: if you want to try these out for yourself on different objects, use something like this:
class Object
def all_equals(o)
ops = [:==, :===, :eql?, :equal?]
Hash[ops.map(&:to_s).zip(ops.map {|s| send(s, o) })]
end
end
"a".all_equals "a"...
How many GCC optimization levels are there?
...
Unfortunately, you still get a ton of <optimized out> in the debugger with -Og. Stepping still jumps around randomly. It's useless IMHO.
– doug65536
Oct 23 '17 at 5:00
...
JavaScript closures vs. anonymous functions
...rent scope of F to which a free variable is bound.
If F is referenced from outside that parent scope, then it becomes a closure for that free variable.
That free variable is called an upvalue of the closure F.
Now let's use this to figure out who uses closures and who doesn't (for the sake of exp...
In Python, how do I determine if an object is iterable?
...o check whether the iterator returned by iter is sane other than to try it out.
If an object o implements __iter__, the iter function will make sure
that the object returned by __iter__ is an iterator. There is no sanity check
if an object only implements __getitem__.
__iter__ wins. If an object o i...
How do I plot in real-time in a while loop using matplotlib?
...)
if __name__ == '__main__':
run(doblit=False)
run(doblit=True)
Output:
Blit = False, average FPS: 54.37
Blit = True, average FPS: 438.27
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How can I improve my paw detection?
...o we'll just update
# the data and position of the same objects throughout this animation...
infile = paw_file(input_filename)
# Since we're making an animation with matplotlib, we need
# ion() instead of show()...
plt.ion()
fig = plt.figure()
ax = fig.add_subplot(111)...
How to update Python?
...updates from python.org in 2020. Also, Python-3.7 has been released. Check out Python-Future on how to make your Python-2 code compatible with Python-3. For updating conda, the documentation now recommends using conda update --all in each of your conda environments to update all packages and the Pyt...
SOAP vs REST (differences)
I have read articles about the differences between SOAP and REST as a web service communication protocol, but I think that the biggest advantages for REST over SOAP are:
...
How does Java handle integer underflows and overflows and how would you check for it?
...t log whatever). If you want to detect overflow on long operations, you're out of luck with primitives, use BigInteger instead.
Edit (2014-05-21): Since this question seems to be referred to quite frequently and I had to solve the same problem myself, its quite easy to evaluate the overflow condi...