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Case conventions on element names?
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Most XML standards originating from the W3C tend to use lower case with hyphens.
There is a philosophical distinction between seeing XML as a format for platform neutral documents, which W3C standards try to encourage, and languages such as XAML which see XML as a serialisation of a platform...
How to print out all the elements of a List in Java?
I am trying to print out all the elements of a List , however it is printing the pointer of the Object rather than the value.
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eclipse won't start - no java virtual machine was found
Eclipse was running fine yesterday (and has been since I installed it about a year ago). Now all the sudden I'm getting the following error on startup:
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How can I print the contents of a hash in Perl?
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edited Nov 3 '12 at 11:25
hippietrail
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What is the most appropriate way to store user settings in Android application
...nd I'd be particularly wary of storing them as clear text. The Android architecture is such that your application's SharedPreferences are sandboxed to prevent other applications from being able to access the values so there's some security there, but physical access to a phone could potentially allo...
symbol(s) not found for architecture i386
When trying to compile with Xcode, I am getting the following error:
18 Answers
18
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Is there a bash command which counts files?
...* | wc -l
ls -1q will give you one line per file, even if they contain whitespace or special characters such as newlines.
The output is piped to wc -l, which counts the number of lines.
share
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How to pass in password to pg_dump?
... to back up my database every night before something catastrophic happens. It looks like this command should meet my needs:
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Prevent a webpage from navigating away using JavaScript
...ws you to display messages, but will not interrupt the navigation (because it is too late). However, using onbeforeunload will interrupt navigation:
window.onbeforeunload = function() {
return "";
}
Note: An empty string is returned because newer browsers provide a message such as "Any unsaved ...
Deleting all records in a database table
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If you are looking for a way to it without SQL you should be able to use delete_all.
Post.delete_all
or with a criteria
Post.delete_all "person_id = 5 AND (category = 'Something' OR category = 'Else')"
See here for more information.
The records are ...