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How to take screenshot of a div with JavaScript?
...ntents.
When the quiz is finished, do this:
var c = document.getElementById('the_canvas_element_id');
var t = c.getContext('2d');
/* then use the canvas 2D drawing functions to add text, etc. for the result */
When the user clicks "Capture", do this:
window.open('', document.getElementById('the...
How do I change Bootstrap 3 column order on mobile layout?
...layout with a top fixed navbar. Underneath I have two columns, one for a sidebar (3), and one for content (9). Which on desktop looks like this
...
Understanding the Rails Authenticity Token
... authenticity_token, stores this token in the session, and places it in a hidden field in the form. When the user submits the form, Rails looks for the authenticity_token, compares it to the one stored in the session, and if they match the request is allowed to continue.
Why it happens
Since the a...
Effects of changing Django's SECRET_KEY
...s between views.
protect session data and create random session keys to avoid tampering as well.
create random salt for most password hashers
create random passwords if necessary
create itself when using startproject
create CSRF key
In reality a lot of the items listed here use SECRET_KEY through...
_=> what does this underscore mean in Lambda expressions?
...going to ignore it.
It's basically exploiting the syntax for what a legal identifier in C# constitutes, and since an identifier can start with an underscore, and contain nothing else, it's just a parameter name.
You could just have easily have written:
var _ = 10;
...
What happens if a Android Service is started multiple times?
...so says there: "The startService() method returns immediately and the Android system calls the service's onStartCommand() method. If the service is not already running, the system first calls onCreate(), then calls onStartCommand()." So if the service is already running then the system will skip the...
How to add a button dynamically in Android?
How to add a button dynamically in Android?
17 Answers
17
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How do I prevent the padding property from changing width or height in CSS?
...
Many of you should consider the width: auto trick below. Works across browsers, less code, etc.
– Ryan Shillington
Oct 3 '13 at 21:07
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Adding div element to body or document in JavaScript
...
Try this out:-
http://jsfiddle.net/adiioo7/vmfbA/
Use
document.body.innerHTML += '<div style="position:absolute;width:100%;height:100%;opacity:0.3;z-index:100;background:#000;"></div>';
instead of
document.body.innerHTML = '<div...
Kill a Process by Looking up the Port being used by it from a .BAT
...ms= " %%P IN ('netstat -a -n -o ^| findstr :8080') DO @ECHO TaskKill.exe /PID %%P
When you're confident in your batch file, remove @ECHO.
FOR /F "tokens=4 delims= " %%P IN ('netstat -a -n -o ^| findstr :8080') DO TaskKill.exe /PID %%P
Note that you might need to change this slightly for differe...