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Using an if statement to check if a div is empty
...there's a chance that there will be white space, then you can use $.trim() and check for the length of the content.
if( !$.trim( $('#leftmenu').html() ).length ) {
// ...
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Overflow Scroll css is not working in the div
...ay overflow content of a block-level element, when it overflows at the top and bottom edges.
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Block Declaration Syntax List
Block syntax in Objective C (and indeed C, I presume) is notoriously incongruous. Passing blocks as arguments looks different than declaring blocks as ivars, which looks different than typedef ing blocks.
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Database: To delete or not to delete records
...t you figure out (to the extent possible of course) an aggregation scheme, and shove that off to another table. This will keep your primary table clean of 'deleted' data, as well as keep your secondary table optimized for monitoring purposes (or whatever you had in mind).
For temporal data, see: ht...
How to run a method every X seconds
I'm developing an Android 2.3.3 application and I need to run a method every X seconds .
8 Answers
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event.preventDefault() function not working in IE
...IE, you can use
event.returnValue = false;
to achieve the same result.
And in order not to get an error, you can test for the existence of preventDefault:
if(event.preventDefault) event.preventDefault();
You can combine the two with:
event.preventDefault ? event.preventDefault() : (event.ret...
Difference between getDefaultSharedPreferences and getSharedPreferences
What is the difference between getDefaultSharedPreferences and getSharedPreferences in Android? Can anyone please explain?
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Best way to build a Plugin system with Java
... bundle their plugins into JAR files. Your applications opens the JAR file and could then use an attribute from JAR manifest or the list of all files in the JAR file to find the class that implements your Plugin interface. Instantiate that class, the plugin is ready to go.
Of course you may also w...
Finding ALL duplicate rows, including “elements with smaller subscripts”
...me is a duplicate of an element with a smaller subscript. So if rows 3, 4, and 5 of a 5-row data frame are the same, duplicated will give me the vector
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How to handle change of checkbox using jQuery?
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...and this.checked is very useful to determine wether the checkbox is checked or not.
– Stefan
Feb 7 '12 at 16:42
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