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What limits does scala place on the “acceptable complexity” of inferred types?
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10
When inferring types, the compiler often needs to calculate the Least Upper Bound (LUB) of a lis...
jQuery: what is the best way to restrict “number”-only input for textboxes? (allow decimal points)
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40 Answers
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SQL Server - When to use Clustered vs non-Clustered Index?
...ason)
it should be non-nullable and ideally also fixed width - a varchar(250) makes a very poor clustering key
Anything else should really be second and third level of importance behind these points ....
See some of Kimberly Tripp's (The Queen of Indexing) blog posts on the topic - anything she h...
How to check if element has any children in Javascript?
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or the length property of childNodes:
if (element.childNodes.length > 0) { // Or just `if (element.childNodes.length)`
// It has at least one
}
If you only want to know about child elements (as opposed to text nodes, attribute nodes, etc.) on all modern browsers (and IE8 — in fact, eve...
Add hover text without javascript like we hover on a user's reputation
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508
Use the title attribute, for example:
<div title="them's hoverin' words">hover me&...
Create JSON object dynamically via JavaScript (Without concate strings)
...not need to count the rows with ´rowNum´?
– Xotic750
May 12 '13 at 12:45
1
push does not need r...
invalid command code ., despite escaping periods, using sed
...ving '' as argument to -i:
find ./ -type f -exec sed -i '' -e "s/192.168.20.1/new.domain.com/" {} \;
See this.
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How do you increase the max number of concurrent connections in Apache?
...ulation of MaxClients and MaxRequestsPerChild
http://web.archive.org/web/20160415001028/http://www.genericarticles.com/mediawiki/index.php?title=How_to_optimize_apache_web_server_for_maximum_concurrent_connections_or_increase_max_clients_in_apache
ServerLimit 16
StartServers 2
MaxClients 200
MinSp...
Thread Safety in Python's dictionary
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Ned BatchelderNed Batchelder
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Handling exceptions from Java ExecutorService tasks
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From the docs:
Note: When actions are enclosed in
tasks (such as FutureTask) either
explicitly or via methods such as
submit, these task objects catch and
maintain computational exceptions, and
so they do not ca...