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Which is faster: while(1) or while(2)?
...e rbp, 0
sub rsp, 32
.seh_stackalloc 32
.seh_endprologue
call __main
.L2:
jmp .L2
.seh_endproc
.ident "GCC: (tdm64-2) 4.8.1"
With -O1:
.file "main.c"
.intel_syntax noprefix
.def __main; .scl 2; .type 32; .endef
.text
.globl main
...
Why is “final” not allowed in Java 8 interface methods?
... methods did not seem to be worth the effort of restructuring the internal call resolution mechanisms". This is speculation, of course, but it is at least backed by subtle evidences, like this Statement (by one of the two persons) in the OpenJDK mailing list:
"I suppose if "final default" method...
How to access component methods from “outside” in ReactJS?
...eRef per latest React docs.
Update 2016-09-19: Changed example to use ref callback per guidance from the ref String attribute docs.
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How do I check if an element is hidden in jQuery?
...it possible to toggle the visibility of an element, using the functions .hide() , .show() or .toggle() ?
59 Answers
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Wolfram's Rule 34 in XKCD [closed]
The hover "joke" in #505 xkcd touts "I call rule 34 on Wolfram's Rule 34".
12 Answers
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force client disconnect from server with socket.io and nodejs
...
Edit: This is now possible
You can now simply call socket.disconnect() on the server side.
My original answer:
This is not possible yet.
If you need it as well, vote/comment on this issue.
sha...
Using .sort with PyMongo
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If it is only one field, it can be .sort("_id", 1)
– Haris Np
Mar 15 '18 at 11:51
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Why does changing the returned variable in a finally block not change the return value?
...ough the return statement has finished), so those changes occur before the calling code sees the returned value.
– Ted Hopp
Apr 17 '13 at 14:08
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What is copy-on-write?
...egy used in computer programming. The fundamental idea is that if multiple callers ask for resources which are initially indistinguishable, you can give them pointers to the same resource. This function can be maintained until a caller tries to modify its "copy" of the resource, at which point a tru...
Reference: What is variable scope, which variables are accessible from where and what are “undefined
...lues it works with originate from. It then explicitly returns a value. The caller has the confidence to know what variables the function will work with and where its return values come from:
$baz = 'baz';
$blarg = foo($baz);
Extending the scope of variables into anonymous functions
$foo = 'bar...