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Determining whether jQuery has not found any element
...t').length is what you're looking for. (If it finds nothing, this will === 0.) So your conditional statement should probably be:
if($('#id').length) { /* code if found */ } else { /* code if not found */ }
You're getting an object returned from that alert because jQuery (almost) always returns the...
How to npm install to a specified directory?
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340
You can use the --prefix option:
mkdir -p ./install/here/node_modules
npm install --prefix ./in...
Looping over a list in Python
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200
Try this,
x in mylist is better and more readable than x in mylist[:] and your len(x) should b...
How do I check for a network connection?
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You can check for a network connection in .NET 2.0 using GetIsNetworkAvailable():
System.Net.NetworkInformation.NetworkInterface.GetIsNetworkAvailable()
To monitor changes in IP address or changes in network availability use the events from the NetworkChange class:
Syst...
Calculate total seconds in PHP DateInterval
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209
Could you not compare the time stamps instead?
$now = new DateTime('now');
$diff = $date->...
Javascript Functions and default parameters, not working in IE and Chrome
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jucojuco
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Using IQueryable with Linq
...etProducts();
var productsOver25 = products.Where(p => p.Cost >= 25.00);
What happens here, is the database loads all of the products, and passes them across the wire to your program. Your program then filters the data. In essence, the database does a SELECT * FROM Products, and returns E...
python tuple to dict
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answered Sep 24 '10 at 1:07
Greg HewgillGreg Hewgill
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How to get the last element of a slice?
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307
For just reading the last element of a slice:
sl[len(sl)-1]
For removing it:
sl = sl[:len(s...
SQLite string contains other string query
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Maksim Turaev
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answered Aug 17 '10 at 2:17
OMG PoniesOMG Ponies
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