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Why is arr = [] faster than arr = new Array?
...mply want to create an array. We see the "new" token, but "new" what? We then see the IDENTIFIER token which signifies we want a new "Array," but JavaScript VM's generally do not distinguish an IDENTIFIER token and tokens for "native global objects." Therefore...
We have to look up the scope chai...
Sorting a vector of custom objects
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If that is the case then why we pass "const X& val", I assume that passing the value as const to a function makes the function think that its value is not going to be changed.
– Prashant Bhanarkar
Aug 2...
Convert blob URL to normal URL
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If blob urls don't point to server data, then how come Youtube videos' src url look like: src="blob:https%3A//www.youtube.com/44f26667-03f1-4978-9eed-af0cbf11dd67" (in Chrome)
– bhh1988
Sep 3 '14 at 15:53
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Do DOM tree elements with ids become global variables?
...ements change id or are added/removed from the document.
Opera copied IE, then WebKit joined in, and now both the previously-unstandardised practice of putting named elements on document properties, and the previously-IE-only practice of putting them on window are being standardised by HTML5, whose...
What is the best way to create constants in Objective-C
...ation and not a framework. If you do static NSString *const foo = @"foo";, then your header determines what the string is, and it must be the same everywhere—if you ever change the string and different parties use different versions of the header with a different string, then the strings won't mat...
In Markdown, what is the best way to link to a fragment of a page, i.e. #some_id?
...der 1 {#header1}
========
## Header 2 ## {#header2}
and then
[Link back to header 1](#header1)
[Link back to header 2](#header2)
Unfortunately this syntax is currently only supported for headers, but at least it could be useful for building a table of contents.
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Compute a confidence interval from sample data
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If I have two arrays of data and then calculated the difference of their mean. Is there any way to get a 95% CI for this mean difference? Could you think of any easy way to do it like the one you provide here by using StatsModelsl?
– st...
How does the new automatic reference counting mechanism work?
...ms GC targets. However ARC works on a more limited set of usage patterns then GC, so if you took a GC language (like Java) and grafted something like ARC onto it some programs wouldn't work any more (or at least would generate tons of abandoned memory, and may cause serious swapping issues or run ...
How Do I Fetch All Old Items on an RSS Feed?
...he service daily polls it's catalog of RSS feeds, and caches the articles. Then, you can get these articles back in a chronological order. For example:
Page 1 of The Atlantic https://pub.center/feed/02702624d8a4c825dde21af94e9169773454e0c3/articles?limit=10&page=1
Page 2 of The Atlantic https:...
Is it faster to count down than it is to count up?
... like generating precisely timed video signals from a microcontroller. But then you'd write in assembly language anyway.)
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