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How can you sort an array without mutating the original array?
...uppose I wanted a sort function that returns a sorted copy of the inputted array. I naively tried this
6 Answers
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Performance of FOR vs FOREACH in PHP
...se what makes sense in the context. Personally I almost never use for for array traversal. I use it for other types of iteration, but foreach is just too easy... The time difference is going to be minimal in most cases.
The big thing to watch for is:
for ($i = 0; $i < count($array); $i++) {
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How to get String Array from arrays.xml file
I am just trying to display a list from an array that I have in my arrays.xml . When I try to run it in the emulator, I get a force close message.
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Angular JS break ForEach
...ve tested on IE11 and it is also as fast as in the screenshot. Also tested Array.some() but it is slower then Array.forEach() on IE11 but could be faster then angular.foreach ;-). Or test it here jsperf.com/angular-foreach-vs-native (all credits go to the original author, not me ;-))
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How do I create a dynamic key to be added to a JavaScript object variable [duplicate]
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Square brackets:
jsObj['key' + i] = 'example' + 1;
In JavaScript, all arrays are objects, but not all objects are arrays. The primary difference (and one that's pretty hard to mimic with straight JavaScript and plain objects) is that array instances maintain the length property so that it refle...
How to find and return a duplicate value in array
arr is array of strings:
20 Answers
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How to extract img src, title and alt from html using php? [duplicate]
..._all match the regexp in all the $html string and output everything as
an array in $result. "i" option is used to make it case insensitive */
preg_match_all('/<img[^>]+>/i',$html, $result);
print_r($result);
Array
(
[0] => Array
(
[0] => <img src="/Conte...
NumPy: function for simultaneous max() and min()
numpy.amax() will find the max value in an array, and numpy.amin() does the same for the min value. If I want to find both max and min, I have to call both functions, which requires passing over the (very big) array twice, which seems slow.
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Declare a constant array
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An array isn't immutable by nature; you can't make it constant.
The nearest you can get is:
var letter_goodness = [...]float32 {.0817, .0149, .0278, .0425, .1270, .0223, .0202, .0609, .0697, .0015, .0077, .0402, .0241, .0675, ...
jQuery.inArray(), how to use it right?
First time I work with jQuery.inArray() and it acts kinda strange.
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