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Java ArrayList how to add elements at the beginning
I need to add elements to an ArrayList queue whatever, but when I call the function to add an element, I want it to add the element at the beginning of the array (so it has the lowest index) and if the array has 10 elements adding a new results in deleting the oldest element (the one with the high...
Why does the PHP json_encode function convert UTF-8 strings to hexadecimal entities?
...
function raw_json_encode($input, $flags = 0) {
$fails = implode('|', array_filter(array(
'\\\\',
$flags & JSON_HEX_TAG ? 'u003[CE]' : '',
$flags & JSON_HEX_AMP ? 'u0026' : '',
$flags & JSON_HEX_APOS ? 'u0027' : '',
$flags & JSON_HEX_QUOT ...
range() for floats
...
And array(range(5,50,15)) / 10.0 as numpy arrays have operators for handling division, multiplication and so on
– edvaldig
Sep 1 '11 at 7:39
...
What are JavaScript's builtin strings?
.... 1/!1+[] gives "Infinity".
I have analyzed different build-in methods for arrays [], objects {}, regular expressions /(?:)/, numbers 1.1, strings "1", and discovered one beautiful method of RegExp object called test(). Its name can be assembled from all available characters, e.g. "t" and "e" from t...
Inline labels in Matplotlib
...s[l].get_label())
pos = np.argmax(p) # note, argmax flattens the array first
best_x, best_y = (pos / N, pos % N)
x = xmin + (xmax-xmin) * best_x / N
y = ymin + (ymax-ymin) * best_y / N
axis.text(x, y, axis.lines[l].get_label(),
...
What is the difference between HashSet and List?
...ollection with O(1) random access than can grow dynamically (think dynamic array). You can test containment in O(n) time (unless the list is sorted, then you can do a binary search in O(log n) time).
Maybe you can explain with an example in what cases HashSet<T> should be prefered against ...
If strings are immutable in .NET, then why does Substring take O(n) time?
...mory location.
The simple .substring(...) shares the internally used char array with the original String object, which you then with new String(...) can copy to a new array, if needed (to avoid hindering garbage collection of the original one).
I think this kind of flexibility is a best option for...
Trying to login to RDP using AS3
...ert the data from big endian to little endian, you can use a temporary ByteArray that has its endian set to big, write data in it, then call writeBytes() on your main buffer array, then clear the temporary big endian array. Writing constants can be done manually, since you can shift the byte order y...
Jquery insert new row into table at a certain index
...ty table, or before a certain row, I have done like this:
var arr = []; //array
if (your condition) {
arr.push(row.id); //push row's id for eg: to the array
idx = arr.sort().indexOf(row.id);
if (idx === 0) {
if (arr.length === 1) { //if array size is only 1 (currently pushed item)
...
How to create GUID / UUID?
...-1e11).replace(/[018]/g, c =>
(c ^ crypto.getRandomValues(new Uint8Array(1))[0] & 15 >> c / 4).toString(16)
);
}
console.log(uuidv4());
Update, 2020-01-06: There is a proposal in the works for a standard uuid module as part of the JS language
...