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How can i tell if an object has a key value observer attached
...{
[someObject removeObserver:someObserver forKeyPath:somePath];
}@catch(id anException){
//do nothing, obviously it wasn't attached because an exception was thrown
}
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Check if an element is a child of a parent
...ive it the selector, as in target.parent('div#hello').
Example: http://jsfiddle.net/6BX9n/
function fun(evt) {
var target = $(evt.target);
if (target.parent('div#hello').length) {
alert('Your clicked element is having div#hello as parent');
}
}
Or if you want to check to ...
Identify user in a Bash script called by sudo
...
I think $SUDO_USER is valid.
#!/bin/bash
echo $SUDO_USER
whoami
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Which characters are valid in CSS class names/selectors?
...he CSS class selectors?
I know that the following characters are invalid , but what characters are valid ?
10 Answers...
How can jQuery deferred be used?
...
Here is a useful video on this topic bigbinary.com/videos/3-using-deferred-in-jquery
– Nick Vanderbilt
Jul 24 '11 at 6:08
5...
How to use radio on change event?
...= 'transfer') {
alert("Transfer Thai Gayo");
}
});
http://jsfiddle.net/4gZAT/
Note that you are comparing the value against allot in both if statements and :radio selector is deprecated.
In case that you are not using jQuery, you can use the document.querySelectorAll and HTMLElement....
How to order results with findBy() in Doctrine
... ->findBy(
array('type'=> 'C12'),
array('id' => 'ASC')
);
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Django Server Error: port is already in use
... On mac you need to use sudo lsof -i tcp:8000 then kill the process ids that show up.
– gordonc
Jan 21 '15 at 13:24
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Trying to start a service on boot on Android
I've been trying to start a service when a device boots up on android, but I cannot get it to work. I've looked at a number of links online but none of the code works. Am I forgetting something?
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Return all enumerables with yield return at once; without looping through
I have the following function to get validation errors for a card. My question relates to dealing with GetErrors. Both methods have the same return type IEnumerable<ErrorInfo> .
...