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How can I wrap text to some length in Vim?
...two things:
Let vim format (i.e.change) your text to have shorter lines, by inserting linebreaks
Leave lines as they are, but display them wrapped
Which do you want?
Option 1 would be achieved by setting textwidth (for example :set textwidth=30 (from Swaarop's answer)). Then you can reformat yo...
HTML: Include, or exclude, optional closing tags?
...ight before it.
The forbidden end tags all would be immediately followed by their end tag so it would be kind of redundant to have to type <img src="blah" alt="blah"></img> every time.
I almost always use the optional tags (unless I have a very good reason not to) because it lends to ...
Use dynamic variable names in JavaScript
...es into the Global object (= window in a browser).
Those can get accessed by using the "dot" or "bracket" notation:
var name = window.a;
or
var name = window['a'];
This only works for the global object in this particular instance, because the Variable Object of the Global Object is the window...
How do I disable right click on my web page?
...
You can do that with JavaScript by adding an event listener for the "contextmenu" event and calling the preventDefault() method:
document.addEventListener('contextmenu', event => event.preventDefault());
That being said: DON'T DO IT.
Why? Because it ...
Undo scaffolding in Rails
...
First, if you have already run the migrations generated by the scaffold command, you have to perform a rollback first.
rake db:rollback
You can create scaffolding using:
rails generate scaffold MyFoo
(or similar), and you can destroy/undo it using
rails destroy scaffold M...
Capture iframe load complete event
... iframe programatically
It makes sure your load listener is always called by attaching it before the iframe starts loading.
<script>
var iframe = document.createElement('iframe');
iframe.onload = function() { alert('myframe is loaded'); }; // before setting 'src'
iframe.src = '...';
documen...
How to tell Eclipse Workspace?
...d only current workspace. You can change the field to something different by typing in the field or using the browse button. But the field (after clicking other) as provided in this answer will show you your current workspace. I just tested it by typing in the field and creating a new test worksp...
Is there any way to view the currently mapped keys in Vim?
...asically, I'd like to view all of the keys maps made in the current buffer by all of plugins, vimrc, etc, in the current buffer. Is there anyway to do this?
...
public friend swap member function
..., which I and others mistakenly thought would be the case. If you were bit by this, read here.
In short: the member function is just noise, the specialization is ugly and incomplete, but the friend function is complete and works. And when you swap, either use boost::swap or an unqualified swap wi...
How do you clear the SQL Server transaction log?
...e log file will grow to the same size again, not very much is accomplished by shrinking it temporarily. Now, depending on the recovery goals of your database, these are the actions you should take.
First, take a full backup
Never make any changes to your database without ensuring you can restore i...