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How can I remove specific rules from iptables?
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Execute the same commands but replace the "-A" with "-D". For example:
iptables -A ...
becomes
iptables -D ...
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What are the best practices to follow when declaring an array in Javascript?
...r of new Array():
var a = new Array(5); // an array pre-sized to 5 elements long
var b = new Array(5, 10); // an array with two elements in it
Note that there's no way with new Array() to create an array with just one pre-specified number element in it!
Using [] is actually more efficient, a...
Declaring functions in JavaScript [duplicate]
...ifferent opinion with most of the people here. Technically this syntax may mean the same for declaring functions both ways
(I stand incorrect on my last statement. I read up on a diff post why they are technically diff and I'll add in the end, why)
; but the way they play a role in evolving patterns...
jQuery UI - Close Dialog When Clicked Outside
I have a jQuery UI Dialog that gets displayed when specific elements are clicked. I would like to close the dialog if a click occurs anywhere other than on those triggering elements or the dialog itself.
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How do I iterate through children elements of a div using jQuery?
I have a div and it has several input elements in it... I'd like to iterate through each of those elements. Ideas?
7 Answer...
Update MongoDB field using value of another field
...a field using the value from another field? The equivalent SQL would be something like:
10 Answers
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Convert MySql DateTime stamp into JavaScript's Date format
Does anyone know how I can take a MySQL datetime data type value, such as YYYY-MM-DD HH:MM:SS and either parse it or convert it to work in JavaScript's Date() function, for example:- Date('YYYY, MM, DD, HH, MM, SS);
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SQL - using alias in Group By
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SQL is implemented as if a query was executed in the following order:
FROM clause
WHERE clause
GROUP BY clause
HAVING clause
SELECT clause
ORDER BY clause
For most relational database systems, this order explains which names (columns...
Equivalent of .try() for a hash to avoid “undefined method” errors on nil? [duplicate]
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You forgot to put a . before the try:
@myvar = session[:comments].try(:[], @comment.id)
since [] is the name of the method when you do [@comment.id].
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Send data from activity to fragment in Android
I have two classes. First is activity, second is a fragment where I have some EditText . In activity I have a subclass with async-task and in method doInBackground I get some result, which I save to variable. How can I send this variable from subclass "my activity" to this fragment?
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