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What's the optimum way of storing an NSDate in NSUserDefaults?
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You are needlessly complicating things. Why are you converting the date to a time interval (then the time interval to a different primitive)? Just [sharedDefaults setObject:theDate forKey:@"theDateKey"] and be done with it. NSDate is one of the "main types" supported by the PL...
What's the difference between integer class and numeric class in R
...ouble precision floating point numbers) and integer. R will automatically convert between the numeric classes when needed, so for the most part it does not matter to the casual user whether the number 3 is currently stored as an integer or as a double. Most math is done using double precision, so ...
jQuery UI Tabs - How to Get Currently Selected Tab Index
...answer is there - use ui.index property to get the current index in the tabselect event.....
– redsquare
Nov 5 '09 at 12:27
17
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Postgres: INSERT if does not exist already
...onditional INSERT in PostgreSQL:
INSERT INTO example_table
(id, name)
SELECT 1, 'John'
WHERE
NOT EXISTS (
SELECT id FROM example_table WHERE id = 1
);
CAVEAT This approach is not 100% reliable for concurrent write operations, though. There is a very tiny race condition between...
Switch statement: must default be the last case?
... controlling
expression. The constant expression in
each case label is converted to the
promoted type of the controlling
expression. If a converted value
matches that of the promoted
controlling expression, control jumps
to the statement following the matched
case label. Otherwise, ...
How to search a string in multiple files and return the names of files in Powershell?
...location of the files that contain your pattern:
Get-ChildItem -Recurse | Select-String "dummy" -List | Select Path
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Select text on input focus
I have a text input. When the input receives focus I want to select the text inside of the input.
10 Answers
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Get the value of a dropdown in jQuery
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$('#Crd').val() will give you the selected value of the drop down element. Use this to get the selected options text.
$('#Crd option:selected').text();
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How to select the last record of a table in SQL?
This is a sample code to select all records from a table. Can someone show me how to select the last record of that table?
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How can you programmatically tell an HTML SELECT to drop down (for example, due to mouseover)?
How can you programmatically tell an HTML select to drop down (for example, due to mouseover)?
12 Answers
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