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How to declare std::unique_ptr and what is the use of it?
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edited Jun 3 '13 at 10:24
answered Jun 3 '13 at 10:18
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Bootstrap 3 Navbar Collapse
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Bootstrap 4
It's a native functionality: https://getbootstrap.com/docs/4.0/components/navbar/#responsive-behaviors
You have to use .navbar-expand{-sm|-md|-lg|-xl} classes:
<nav class="navbar navbar-expand-md navbar-light bg-light">
Bootstrap 3
@media (max-width: 991px) {
.navbar-hea...
What is the explanation for these bizarre JavaScript behaviours mentioned in the 'Wat' talk for Code
The 'Wat' talk for CodeMash 2012 basically points out a few bizarre quirks with Ruby and JavaScript.
5 Answers
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How to use GROUP_CONCAT in a CONCAT in MySQL
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answered Nov 19 '12 at 10:33
SamiSami
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Video auto play is not working in Safari and Chrome desktop browser
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edited Sep 20 '18 at 9:10
answered Aug 1 '13 at 12:53
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Byte array to image conversion
...en for the lifetime of the Image." See also stackoverflow.com/questions/3290060/…
– RenniePet
Jan 9 '13 at 10:21
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In MySQL queries, why use join instead of where?
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Where supported (Oracle 9i+, PostgreSQL 7.2+, MySQL 3.23+, SQL Server 2000+), there is no performance benefit to using either syntax over the other. The optimizer sees them as the same query. But more complex queries can benefit from using ANSI-92 syntax:
Ability to control JOIN order - the ...
css3 transition animation on load?
...enu sliding into place using CSS3 only:
@keyframes slideInFromLeft {
0% {
transform: translateX(-100%);
}
100% {
transform: translateX(0);
}
}
header {
/* This section calls the slideInFromLeft animation we defined above */
animation: 1s ease-out 0s 1 slideInFromLeft;
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What is “rvalue reference for *this”?
...t;
t.f(); // lvalue
test().f(); // rvalue
}
Output:
$ clang++ -std=c++0x -stdlib=libc++ -Wall -pedantic t.cpp
$ ./a.out
lvalue object
rvalue object
The whole thing is done to allow you to take advantage of the fact when the object the function is called on is an rvalue (unnamed temporary, for ...
Change working directory in my current shell context when running Node script
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10
The method changes the current working directory of the process, not the shell. As far as I know, changing the external cwd of a running pro...