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Approximate cost to access various caches and main memory?
Can anyone give me the approximate time (in nanoseconds) to access L1, L2 and L3 caches, as well as main memory on Intel i7 processors?
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Conditionally start at different places in storyboard from AppDelegate
...en login is successful.
My objective is to show the main view controller immediately if the authentication (stored in keychain) is successful, and show the login view controller if the authentication failed.
Basically, I want to do this in my AppDelegate:
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Java inner class and static nested class
...tween an inner class and a static nested class in Java? Does design / implementation play a role in choosing one of these?
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std::function vs template
...der principle: try to specify as many constraints as possible at compile-time. The rationale is simple: if you can catch an error, or a type mismatch, even before your program is generated, you won't ship a buggy program to your customer.
Moreover, as you correctly pointed out, calls to template f...
Differences between Proxy and Decorator Pattern
...ote from the GoF (page 216).
Although decorators can have similar implementations as proxies, decorators have a different purpose. A decorator adds one or more responsibilities to an object, whereas a proxy controls access to an object.
Proxies vary in the degree to which they are implement...
is there a post render callback for Angular JS directive?
I 've just gotten my directive to pull in a template to append to its element like this:
10 Answers
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Is there a jQuery unfocus method?
...ocus a textarea or input? I couldn't find a $('#my-textarea').unfocus(); method?
6 Answers
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How to sort an array of associative arrays by value of a given key in PHP?
... array_multisort() is a few percent faster on small arrays and up to 100 times faster on big arrays (100+ elements)
– Josh Davis
Oct 22 '09 at 2:49
3
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how to exclude null values in array_agg like in string_agg using postgres?
If I use array_agg to collect names, I get my names separated by commas, but in case there is a null value, that null is also taken as a name in the aggregate. For example :
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Can you put two conditions in an xslt test attribute?
...-case.
<xsl:when test="4 &lt; 5 and 1 &lt; 2">
<!-- do something -->
</xsl:when>
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