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How to parse a string into a nullable int
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There is no order-of-evaluation side-effect here. All steps are explicitly ordered and correct.
– Jon Hanna
Mar 22 '11 at 14:30
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Is there a replacement for unistd.h for Windows (Visual C)?
...for getpid() and the exec..() family */
#include <direct.h> /* for _getcwd() and _chdir() */
#define srandom srand
#define random rand
/* Values for the second argument to access.
These may be OR'd together. */
#define R_OK 4 /* Test for read permission. */
#define W_OK 2 ...
Counting array elements in Python [duplicate]
... implementing one of the standard interfaces in Python (container, number, etc). Special methods are used via syntactic sugar (object creation, container indexing and slicing, attribute access, built-in functions, etc.).
Using obj.__len__() wouldn't be the correct way of using the special method, ...
Why do x86-64 instructions on 32-bit registers zero the upper part of the full 64-bit register?
...7 to finish before dispatch to the execution units, even though the higher order bits are identical anyway
The only benefit of not zero extending is ensuring the higher order bits of rax are included, for instance, if it originally contains 0xffffffffffffffff, the result would be 0xffffffff0000000...
What should Xcode 6 gitignore file include?
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Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity.
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JS: Check if date is less than 1 hour ago?
...nt(yourDateString), 'hours');
It will give you integer value like 1,2,5,0etc so you can easily use condition check like:
if(hours < 1) {
Also, one more thing is you can get more accurate result of the time difference (in decimals like 1.2,1.5,0.7etc) to get this kind of result use this synta...
what is the difference between a portlet and a servlet?
...ds they differ in containers, APIs, life cycle, configuration, deployment, etc.
The main difference between portlet vs. servlet could be that while servlet always responds to single type of action - request, portlet (due to nature of its life cycle and stronger container bindings) has to respond t...
Why do most C developers use define instead of const? [duplicate]
...== x, but if SCALE is an (extern) const, it will need to generate code to fetch the value and perform the multiplication because the value will not be known until the linking stage. (extern is needed to use the constant from several source files.)
A closer equivalent to using #define is using enume...
Pass correct “this” context to setTimeout callback?
...n, you'd have solved this problem for this case, for map(), for forEach(), etc., etc., using less code, fewer CPU cycles, and less memory. ***See: Misha Reyzlin's answer.
– HoldOffHunger
Oct 20 '17 at 17:06
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How do I perform HTML decoding/encoding using Python/Django?
...issing the single-quote. This version includes an updated tuple, with the order of replacement reversed to avoid symmetric problems:
def html_decode(s):
"""
Returns the ASCII decoded version of the given HTML string. This does
NOT remove normal HTML tags like <p>.
"""
htm...