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PostgreSQL delete all content
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Use the TRUNCATE TABLE command.
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With Git, how do I turn off the “LF will be replaced by CRLF” warning
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You should use core.autocrlf input and core.eol input. Or just don't let git change the line endings at all with autocrlf false and get rid of highlighting of crlfs in diffs, etc with core.whitespace cr-at-eol.
Hope this helps
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Android: When is onCreateOptionsMenu called during Activity lifecycle?
I put a couple of breakpoints in onCreate (one at the beginning, and one at the end of the method), and I also put one at the beginning of onCreateOptionsMenu . The onCreate method is called first, and before it finishes onCreateOptionsMenu is called.
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Is there a jQuery unfocus method?
...bind the event before the DOM is loaded. Try to put the code in the ready handler of the page like this: $(document).ready(function() { $('#textarea').blur() })
– user434917
May 13 '09 at 12:38
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Determine if an HTML element's content overflows
..., a long div with small, fixed size, the overflow property set to visible, and no scrollbars on the element.
6 Answers
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How do I use define_method to create class methods?
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I prefer using send to call define_method, and I also like to create a metaclass method to access the metaclass:
class Object
def metaclass
class << self
self
end
end
end
class MyClass
# Defines MyClass.my_method
self.metaclass.send(:defi...
Make page to tell browser not to cache/preserve input values
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I talk about checkboxes so I can't set value to "". And, does autocomplete off means not to store form input values "when user presses F5", not only "for dropdown autocompletion list"?
– queen3
Apr 23 '10 at 17:20
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Convert timedelta to total seconds
... answered Apr 2 '11 at 8:20
Andreas JungAndreas Jung
1
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setNeedsLayout vs. setNeedsUpdateConstraints and layoutIfNeeded vs updateConstraintsIfNeeded
...ates one of your constraints, you should remove the constraint immediately and call setNeedsUpdateConstraints. In fact, that’s the only case where you should have to trigger a constraint update pass.
In addition, in my experience, I have never had to invalidate constraints, and not set the setNe...
How do I find which transaction is causing a “Waiting for table metadata lock” state?
I am trying to perform some DDL on a table and SHOW PROCESSLIST results in a " Waiting for table metadata lock " message.
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