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Meaning of = delete after function declaration
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Deleting a function is a C++11 feature:
The common idiom of "prohibiting copying" can now be expressed
directly:
class X {
// ...
X& operator=(const X&) = delete; // Disallow copying
X(const X&) = delete;
};
[...]
The "delete" mechanism can be used for ...
Jquery bind double click and single click separately
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I found that John Strickler's answer did not quite do what I was expecting. Once the alert is triggered by a second click within the two-second window, every subsequent click triggers another alert until you wait two seconds before clicking again. So with John's code, a...
can we use xpath with BeautifulSoup?
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Nope, BeautifulSoup, by itself, does not support XPath expressions.
An alternative library, lxml, does support XPath 1.0. It has a BeautifulSoup compatible mode where it'll try and parse broken HTML the way Soup does. However, the default lxml HTML...
Android Studio - How to increase Allocated Heap Size
...een using Android Studio for 3 months now and one of the apps I started on it has become fairly large. The memory usage indicated at the bottom right of the program says my allocated heap is maxed at 494M.
...
Detect 7 inch and 10 inch tablet programmatically
...for the Galaxy SIII, the Galaxy Nexus etc.
This isn't usually helpful on its own, as when we're working on Android devices, we usually prefer to work in density independent pixels, dip.
You get the density of the screen using metrics again, in the form of a scale factor for the device, which is b...
docker mounting volumes on host
I have successfully been able to share folders between a docker container with volumes using
5 Answers
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Difference between @import and link in CSS
...and all sorts of combinations of them) called "don’t use @import". That title pretty much speaks for itself.
Yahoo! also mentions it as one of their performance best practices (co-authored by Steve Souders): Choose <link> over @import
Also, using the <link> tag allows you to define "...
How to disable a link using only CSS?
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The answer is already in the comments of the question. For more visibility, I am copying this solution here:
.not-active {
pointer-events: none;
cursor: default;
text-decoration: none;
color: black;
}
<a href="link.html" class="not-active">Link</a>
For brows...
How to empty a Heroku database
...ABASE_URL:
$ heroku pg:reset DATABASE_URL
Now to recreate the database with nothing in it:
$ heroku run rake db:migrate
To populate the database with your seed data:
$ heroku run rake db:seed
---OR---
You can combine the last two (migrate & seed) into one action by executing this:
$...
How do I create a crontab through a script
... am currently using Ubuntu. I can use crontab -e but that will open an editor to edit the current crontab. I want to do this programmatically.
...