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Check if any ancestor has a class using jQuery
...parents to be found, parents() is faster than closest() jsperf.com/closest-vs-parents-foobar
– Alex
May 7 '14 at 7:42
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Is there a concise way to iterate over a stream with indices in Java 8?
... work. You can't have different segments of a pipeline running in parallel vs sequential. Only the last of parallel or sequential is honored when the terminal operation commences.
– Stuart Marks
Aug 15 '14 at 22:03
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What is the C# equivalent to Java's isInstance()?
...bject (Java java.lang.Class ≣ C# System.Type) of an obj (via .getClass() vs .getType()), Java’s isInstance takes an object as its argument, whereas C#’s IsAssignableFrom expects another System.Type object.
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How to add item to the beginning of List?
...lt;T> requires all items to be moved over. See When should I use a List vs a LinkedList.
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How can I determine the direction of a jQuery scroll event?
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Check current scrollTop vs previous scrollTop
var lastScrollTop = 0;
$(window).scroll(function(event){
var st = $(this).scrollTop();
if (st > lastScrollTop){
// downscroll code
} else {
// upscroll code
}
lastScrollT...
Get value of dynamically chosen class constant in PHP
...s to understand them, but haven't seen much in terms of performance impact vs the accepted answer. THAT is something I'm interested in knowing. Instantiating a new class seems like it'd have a bigger performance hit than simply calling a constant statically. What are your thoughts on that?
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Can you “ignore” a file in Perforce?
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community wiki
21 revs, 2 users 98%Colonel Panic
2
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What is the difference between call and apply?
...ly. I can't tell you exactly why.
See jsPerf, http://jsperf.com/test-call-vs-apply/3
[UPDATE!]
Douglas Crockford mentions briefly the difference between the two, which may help explain the performance difference... http://youtu.be/ya4UHuXNygM?t=15m52s
Apply takes an array of arguments, while C...
Why start an ArrayList with an initial capacity?
...aranteed to run in O(1).
1000000 + 1000000 = 2000000 operations
Java vs C#
Java is as above, starting at 10 and increasing each resize at 50% + 1. C# starts at 4 and increases much more aggressively, doubling at each resize. The 1000000 adds example from above for C# uses 3097084 operations.
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Set a default parameter value for a JavaScript function
...ned. Plus that way you'd get a reference error if you misspelled undefined vs. putting it in a string.
– Abe Voelker
May 21 '15 at 22:04
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