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What are the “standard unambiguous date” formats for string-to-date conversion in R?
...-'NA' element,
and give an error if neither works.
as.Date("01 Jan 2000") yields an error because the format isn't one of the two listed above. as.Date("01/01/2000") yields an incorrect answer because the date isn't in one of the two formats listed above.
I take "standard unambiguou...
How do I check in SQLite whether a table exists?
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1045
I missed that FAQ entry.
Anyway, for future reference, the complete query is:
SELECT name F...
Asking the user for input until they give a valid response
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Heroku/devise - Missing host to link to! Please provide :host parameter or set default_url_options[:
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edited Jul 7 '11 at 21:58
sarnold
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How does a Java HashMap handle different objects with the same hash code?
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How to get the tag HTML with JavaScript / jQuery?
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313
The simplest way to get the html element natively is:
document.documentElement
Here's the re...
How do I get a platform-dependent new line character?
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In addition to the line.separator property, if you are using java 1.5 or later and the String.format (or other formatting methods) you can use %n as in
Calendar c = ...;
String s = String.format("Duke's Birthday: %1$tm %1$te,%1$tY%n", c);
//Note `%n` at end of line ...
How do you remove a Cookie in a Java Servlet
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The MaxAge of -1 signals that you want the cookie to persist for the duration of the session. ...
NSUserDefaults not cleared after app uninstall on simulator
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I think this is due to a bug in the iOS8 Beta Simulator.
The expected behavior is that when t...