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applicationWillEnterForeground vs. applicationDidBecomeActive, applicationWillResignActive vs. appli
...ugh springboard, app switching or URL) applicationWillEnterForeground: is called. It is only executed once when the app becomes ready for use, after being put into the background, while applicationDidBecomeActive: may be called multiple times after launch. This makes applicationWillEnterForeground: ...
Why does instanceof return false for some literals?
...) {}); // function
As you can see objects, arrays and the value null are all considered objects (null is a reference to an object which doesn't exist). Functions are distinguished because they are a special type of callable objects. However they are still objects.
On the other hand the literals t...
Why doesn't a python dict.update() return the object?
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Python's mostly implementing a pragmatically tinged flavor of command-query separation: mutators return None (with pragmatically induced exceptions such as pop;-) so they can't possibly be confused with accessors (and in the same vein, assignment is not an expressi...
Parsing a comma-delimited std::string [duplicate]
... : if (ss.peek() == ',' || ss.peek() == ' ')
– safe_malloc
Oct 31 '14 at 9:27
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How do I check what version of Python is running my script?
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it's actually the syntax for print. not for checking the version. i use that in my python 2 and 3 scripts: PY3 = sys.version_info[0] == 3
– gcb
Jul 30 '15 at 8:47
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How to make zsh run as a login shell on Mac OS X (in iTerm)?
.... This can happen if you're changing, for example, to a version of zsh installed by homebrew, which puts it in /usr/local/bin/zsh.
– shovavnik
Oct 30 '14 at 20:32
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fastest (low latency) method for Inter Process Communication between Java and C/C++
...leep(0) (which as strace shows causes a single sched_yield() Linux kernel call to be executed) takes 0.3 microsecond - so named pipes scheduled to single core still have much overhead
Some shared memory measurement:
September 14, 2009 – Solace Systems announced today that its Unified Messaging...
Equivalent of LIMIT and OFFSET for SQL Server?
In PostgreSQL there is the Limit and Offset keywords which will allow very easy pagination of result sets.
16 Answers
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changing source on html5 video tag
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I hated all these answers because they were too short or relied on other frameworks.
Here is "one" vanilla JS way of doing this, working in Chrome, please test in other browsers:
http://jsfiddle.net/mattdlockyer/5eCEu/2/
HTML:
&l...
Explanation of [].slice.call in javascript?
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What's happening here is that you call slice() as if it was a function of NodeList using call(). What slice() does in this case is create an empty array, then iterate through the object it's running on (originally an array, now a NodeList) and keep appending t...