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How can I profile C++ code running on Linux?
...d be easier to spot, on subsequent passes. This magnification effect, when compounded over multiple problems, can lead to truly massive speedup factors.
Caveat: Programmers tend to be skeptical of this technique unless they've used it themselves. They will say that profilers give you this informati...
How to combine two or more querysets in a Django view?
...ossible to sort the resulting list e.g. by date (as requested in hasen j's comment to another answer). The sorted() function conveniently accepts a generator and returns a list:
result_list = sorted(
chain(page_list, article_list, post_list),
key=lambda instance: instance.date_created)
If...
How to make shallow git submodules?
...
New in the upcoming git1.8.4 (July 2013):
"git submodule update" can optionally clone the submodule repositories shallowly.
(And git 2.10 Q3 2016 allows to record that with git config -f .gitmodules submodule.<name>.shallow t...
Determine if an element has a CSS class with jQuery
... but you can easily see all the methods alphabetically as well. Everything comes with an example, and the comments section usually clears up anything that's left out. jQuery has a LOT of excellent functions and utilities and it takes some learning to discover them all. -EDIT- That makes sense, it's ...
What is the difference between '@' and '=' in directive scope in AngularJS?
...
If you would like to see more how this work with a live example. http://jsfiddle.net/juanmendez/k6chmnch/
var app = angular.module('app', []);
app.controller("myController", function ($scope) {
$scope.title = "binding";
});
app.directive("jmFind", function () {
return {
re...
Is a memory leak created if a MemoryStream in .NET is not closed?
...at you should not dispose IDisposable object is HttpClient aspnetmonsters.com/2016/08/2016-08-27-httpclientwrong Just another example from BCL where there is IDisposable object and you don't need (or even shouldn't) dispose it. This is just to remember that usually there are some exceptions from ge...
How to get Git to clone into current directory
...
simply put a dot next to it
git clone git@github.com:user/my-project.git .
From git help clone:
Cloning into an existing directory is only allowed if the directory is empty.
So make sure the directory is empty (check with ls -a), otherwise the command will fail.
...
not:first-child selector
...9 supports it. A great resource to get this kind of information is caniuse.com.
– Jon
Jul 29 '14 at 9:15
...
What is the difference between “expose” and “publish” in Docker?
...t from inside other Docker containers. So this is good for inter-container communication.
3) If you EXPOSE and -p a port, the service in the container is accessible from anywhere, even outside Docker.
The reason why both are separated is IMHO because:
choosing a host port depends on the host and...
Difference between margin and padding?
...s for a definition. But the graphic is a perfect illustration. w3schools.com/css/css_margin.asp w3schools.com/css/css_padding.asp
– Suroot
May 11 '11 at 2:53
...