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Fastest way to duplicate an array in JavaScript - slice vs. 'for' loop
...rmation:
for blink browsers slice() is the fastest method, concat() is a bit slower, and while loop is 2.4x slower.
for other browsers while loop is the fastest method, since those browsers don't have internal optimizations for slice and concat.
This remains true in Jul 2016.
Below are simple sc...
Get first key in a (possibly) associative array?
... determine the first key in a possibly associative array? My first thought it to just foreach the array and then immediately breaking it, like this:
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edited Mar 31 at 16:17
Waqas Bukhary
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Profiling Django
...y django application has become painfully slow on the production. Probably it is due to some complex or unindexed queries.
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How to inspect FormData?
I've tried console.log and looping through it using for in .
15 Answers
15
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UIStatusBarStyle PreferredStatusBarStyle does not work on iOS 7
In my iPhone application built with Xcode 5 for iOS 7 I set UIViewControllerBasedStatusBarAppearance=YES in info.plist , and in my ViewController I have this code:
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Is it intended by the C++ standards committee that in C++11 unordered_map destroys what it inserts?
... the "universal" constructor is not, in fact, supposed to always move from its argument. It's supposed to move if the argument is really an rvalue, and copy if it's an lvalue.
The behaviour, you observe, which always moves, is a bug in libstdc++, which is now fixed according to a comment on the que...
Sending emails with Javascript
This is a little confusing to explain, so bear with me here...
8 Answers
8
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Understanding the difference between __getattr__ and __getattribute__
...nce between __getattr__ and __getattribute__ , however, I am failing at it.
4 Answers
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ElasticSearch, Sphinx, Lucene, Solr, Xapian. Which fits for which usage? [closed]
...r than having a huge SQL query.
I saw elasticsearch recently and played with whoosh (a Python implementation of a search engine).
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