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Detecting arrow key presses in JavaScript
...
case 40:
alert('down');
break;
}
};
Demo (thanks to user Angus Grant): http://jsfiddle.net/angusgrant/E3tE6/
This should work cross-browser. Leave a comment if there is a browser where it does not work.
There are other ways to get the key code (e.which, e.ch...
What does the property “Nonatomic” mean?
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After reading so many Articles and StackOverflow posts, and having made demo apps to check Variable property attributes, I decided to put all the attributes information together
atomic //default
nonatomic
strong=retain //default
weak= unsafe_unretained
retain
assign //de...
Convert javascript array to string
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var str = index + ":" + val;
return str;
}).join(", ");
DEMO
But why use jQuery at all in this case? map only introduces an unnecessary function call per element.
var values = [];
for(var i = 0, l = value.length; i < l; i++) {
values.push(i + ':' + value[i]);
}
// or ...
How to get existing fragments when using FragmentPagerAdapter
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I have found answer on my question based on following post: reusing fragments in a fragmentpageradapter
Few things I have learned:
getItem(int position) in the FragmentPagerAdapter is rather misleading name of what this method actually does. It creates new ...
How can I print variable and string on same line in Python?
...;20f}".format(1,2,1.1)
1 002 1.100000
^^^
0's padded to 2
Demo:
>>> births = 4
>>> print "If there was a birth every 7 seconds, there would be: ",births,"births"
If there was a birth every 7 seconds, there would be: 4 births
#formatting
>>> print "If the...
How to tell if a file is git tracked (by shell exit code)?
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JaredParJaredPar
648k133133 gold badges11601160 silver badges13951395 bronze badges
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How can I update npm on Windows?
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Note 32 and 64 bit MSIs. Do not just click on "Windows Installer" link - that's 32 bit. Check where your current nodejs resides, in "Program Files" or on "Program Files (x86)". The "x86" means 32-bit. See the comments below about "old ...
Referring to a Column Alias in a WHERE Clause
....maxlogtm, GETDATE()) AS daysdiff) c
WHERE c.daysdiff > 120;
DBFiddle Demo
Pros:
single definition of expression(easier to maintain/no need of copying-paste)
no need for wrapping entire query with CTE/outerquery
possibility to refer in WHERE/GROUP BY/ORDER BY
possible better performance(sing...
How to develop and test an app that sends emails (without filling someone's mailbox with test data)?
... a mail is received (running smtp4dev on win7, sending from SQL Server Database Mail Test E-mail script)
– Jona
Dec 6 '11 at 13:17
...
Freeze the top row for an html table only (Fixed Table Header Scrolling) [duplicate]
...es are so cute in that different browsers will allocate pixels differently based on calculations and you simply CANNOT (AFAIK) guarantee that the distribution will be perfect in all cases. It becomes glaringly obvious if you have borders within your table.
I took a different approach and said screw...