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For..In loops in JavaScript - key value pairs
...int out this output:
a 1
b 2
c 3
The Object.entries() method returns an array of a given object's own enumerable property [key, value] pairs, in the same order as that provided by a for...in loop (the difference being that a for-in loop enumerates properties in the prototype chain as well).
Obj...
PHP “pretty print” json_encode [duplicate]
...JSON file. Right now I'm just using json_encode (PHP 5.2.x) to encode an array into JSON output. Then I print the returned value to a file and save it. Problem is that the client wants to be able to open these JSON files for readability, so I'd like to add line breaks in and "pretty print" the JSO...
Javascript/jQuery: Set Values (Selection) in a multiple Select
... Its working when I am passing string, but not when I am passing array.
– Ravi G
Sep 10 '14 at 15:19
Having ...
Replace a character at a specific index in a string?
...rn the String into a char[], replace the letter by index, then convert the array back into a String.
String myName = "domanokz";
char[] myNameChars = myName.toCharArray();
myNameChars[4] = 'x';
myName = String.valueOf(myNameChars);
...
Const in JavaScript: when to use it and is it necessary?
... Got here because I am trying to understand const in the context of arrays (similar to the example @chharvey used). In the case of const countArray = countup(n - 1); countArray.push(n); the const is re-assigned each time. So why use const and not var?
– YCode
...
Remove duplicate lines without sorting [duplicate]
...he variable $0 holds the entire contents of a line and square brackets are array access. So, for each line of the file, the node of the array x is incremented and the line printed if the content of that node was not (!) previously set.
...
Performance differences between debug and release builds
...g optimized code so difficult. And giving the volatile keyword a meaning.
Array index checking elimination. An important optimization when working with arrays (all .NET collection classes use an array internally). When the JIT compiler can verify that a loop never indexes an array out of bounds t...
Argmax of numpy array returning non-flat indices
I'm trying to get the indices of the maximum element in a Numpy array.
This can be done using numpy.argmax . My problem is, that I would like to find the biggest element in the whole array and get the indices of that.
...
Callback after all asynchronous forEach callbacks are completed
...
Array.forEach does not provide this nicety (oh if it would) but there are several ways to accomplish what you want:
Using a simple counter
function callback () { console.log('all done'); }
var itemsProcessed = 0;
[1, 2, 3...
What are the advantages of NumPy over regular Python lists?
...
NumPy's arrays are more compact than Python lists -- a list of lists as you describe, in Python, would take at least 20 MB or so, while a NumPy 3D array with single-precision floats in the cells would fit in 4 MB. Access in reading a...