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MySQL root password change
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SET PASSWORD FOR 'root'@'localhost' = PASSWORD('mypass');`
FLUSH PRIVILEGES;`
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what is the difference between ?:, ?! and ?= in regex?
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160
The difference between ?= and ?! is that the former requires the given expression to match and...
How to select an element inside “this” in jQuery?
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$( this ).find( 'li.target' ).css("border", "3px double red");
or
$( this ).children( 'li.t...
jQuery: serialize() form and other parameters
...pe : 'POST',
url : 'url',
data : $('#form').serialize() + "&par1=1&par2=2&par3=232"
}
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How to implement an android:background that doesn't stretch?
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11 Answers
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NSDictionary - Need to check whether dictionary contains key-value pair or not
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194
Just ask it for the objectForKey:@"b". If it returns nil, no object is set at that key.
if (...
Why does make think the target is up to date?
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edited May 30 '12 at 6:43
answered Oct 14 '10 at 9:30
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Ruby on Rails: How do I add placeholder text to a f.text_field?
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271
With rails >= 3.0, you can simply use the placeholder option.
f.text_field :attr, placeholde...
How to check if a value exists in a dictionary (python)
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>>> d = {'1': 'one', '3': 'three', '2': 'two', '5': 'five', '4': 'four'}
>>> 'one' in d.values()
True
Out of curiosity, some comparative timing:
>>> T(lambda : 'one' in d.itervalues()).repeat()
[0.28107285499572754...
Adding two Java 8 streams, or an extra element to a stream
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If you add static imports for Stream.concat and Stream.of, the first example could be written ...