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What is the best way to compare floats for almost-equality in Python?

...ges often give the compiler a lot of slack, so you might not know in which order operations are performed. There is much more that could be (and is) written about this topic, but I have to stop there. In summary, the answer is: There is no library routine for this comparison because there is no sin...
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INNER JOIN vs LEFT JOIN performance in SQL Server

...clustered index scans with a seek - meaning that this will literally be an order of magnitude faster with a large number of rows. So the conclusion is more or less what I mentioned several paragraphs above; this is almost certainly an indexing or index coverage problem, possibly combined with one o...
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How to sort List of objects by some property

...d idea to implement Comparable<T> if there's a single "natural" sort order... otherwise (if you happen to want to sort in a particular order, but might equally easily want a different one) it's better to implement Comparator<T>. This particular situation could go either way, to be honest...
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What is SaaS, PaaS and IaaS? With examples

...rage, firewalls, load balancers, IP addresses, virtual local area networks etc. Examples: Amazon EC2, Windows Azure, Rackspace, Google Compute Engine. PaaS (Platform as a Service), as the name suggests, provides you computing platforms which typically includes operating system, programming languag...
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Why the switch statement cannot be applied on strings?

...array but it doesn't really fully understand the notion of a string. In order to generate the code for a switch statement the compiler must understand what it means for two values to be equal. For items like ints and enums, this is a trivial bit comparison. But how should the compiler compare 2...
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Java Reflection Performance

... reflection throughout a million line system only to later discover it was orders of magnitude too slow. – RichieHH Aug 15 '10 at 14:51 2 ...
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.htaccess not working apache

...able Apache mod_rewrite module a2enmod rewrite add the following code to /etc/apache2/sites-available/default AllowOverride All Restart apache /etc/init.d/apache2 restart share | improve this an...
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How can I reorder a list? [closed]

If I have a list [a,b,c,d,e] how can I reorder the items in an arbitrary manner like [d,c,a,b,e] ? 12 Answers ...
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How to require a controller in an angularjs directive

...controller methods created via $scope.methodName = function(){...}, but in order for this to work, you must use this.methodName for the methods you want accessible. I didn't notice that at first. – coblr Mar 19 '14 at 0:57 ...
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When writing a directive in AngularJS, how do I decide if I need no new scope, a new child scope, or

...ral directives (some nested inside others or adding attributes to them) in order to fully write in my own HTML, which is the purpose of a Domain Specific Language. In the end, it's too weird to have to pass every global or shared value down the chain with multiple attributes on each DOM invocation ...