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Check if inputs are empty using jQuery
... {
$(this).parents('p').addClass('warning');
}
});
And you don't necessarily need .length or see if it's >0 since an empty string evaluates to false anyway but if you'd like to for readability purposes:
$('#apply-form input').blur(function()
{
if( $(this).val().length === 0 )...
Getting “CHECKOUT can only be performed on a version resource” when trying to commit using Eclipse s
...
I had to do 'svn cleanup' from the command line. After that in Eclipse I do refresh, then team->refresh/cleanup
– fchen
Feb 16 '18 at 16:05
...
WAMP/XAMPP is responding very slow over localhost
I don't know what the problem is. WAMP was very slow, so I reformatted my computer and installed WAMP. Still, accessing localhost is very, very slow, and sometimes it doesn't even load at all. I even removed it and replaced it with XAMPP, but I still got the same result. What might possibly be the p...
Ternary operation in CoffeeScript
... be ugly and unintuitive AF. If you can use if then else on the same line, do it, it's 7 additional characters for much more clarity and elegance.
– Joshua Pinter
Jan 8 '19 at 4:33
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Rails “validates_uniqueness_of” Case Sensitivity
...
validates_uniqueness_of :name, :case_sensitive => false does the trick, but you should keep in mind that validates_uniqueness_of does not guarantee uniqueness if you have multiple servers/server processes (e.g. running Phusion Passenger, multiple Mongrels, etc) or a multi-threaded...
What's the purpose of the LEA instruction?
...ve pointed out, LEA (load effective address) is often used as a "trick" to do certain computations, but that's not its primary purpose. The x86 instruction set was designed to support high-level languages like Pascal and C, where arrays—especially arrays of ints or small structs—are common. Cons...
What is Dispatcher Servlet in Spring?
...age, and to combine its results with the matching JSP file to make an html document.
How it accomplishes this varies widely with configuration and Spring version.
There's also no reason the end result has to be web pages. It can do the same thing to locate RMI end points, handle SOAP requests, an...
Get Slightly Lighter and Darker Color from UIColor
... to be able to turn any UIColor into a gradient. The way I am intending to do this is by using Core Graphics to draw a gradient. What I am trying to do is to get a color, lets say:
...
How to add a list item to an existing unordered list?
...
This would do it:
$("#header ul").append('<li><a href="/user/messages"><span class="tab">Message Center</span></a></li>');
Two things:
You can just append the <li> to the <ul> itself....
Change the default editor for files opened in the terminal? (e.g. set it to TextEdit/Coda/Textmate)
... to the path of TextEdit in your bashrc. Git will use this as well.
How to do this:
Add the following to your ~/.bashrc file:
export EDITOR="/Applications/TextEdit.app/Contents/MacOS/TextEdit"
or just type the following command into your Terminal:
echo "export EDITOR=\"/Applications/TextEdit.app/Co...