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Heap vs Binary Search Tree (BST)
...le its size takes O(n) worst case, while the tree heap just does new small allocations for each node.
Still, the backing array doubling is O(1) amortized, so it comes down to a maximum latency consideration. Mentioned here.
Philosophy
BSTs maintain a global property between a parent and all desc...
How to calculate md5 hash of a file using javascript
... I've managed to get this working and the same md5 hash is generating (php: md5_file(...)) for text files but images are giving me different results? Is this something to do with the binary data or the way its uploaded?
– Castles
Apr 26 '11 at 15:16
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Can I implement an autonomous `self` member type in C++?
C++ lacks the equivalent of PHP's self keyword , which evaluates to the type of the enclosing class.
13 Answers
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How do I get the entity that represents the current user in Symfony2?
...ct the Security service via auto-wiring in the controller like this:
<?php
use Symfony\Component\Security\Core\Security;
class SomeClass
{
/**
* @var Security
*/
private $security;
public function __construct(Security $security)
{
$this->security = $securit...
Is there a standard naming convention for git tags? [closed]
...ackage managers advice to tag versions without prefix v (like composer for PHP projects).
SemVer 2.0 has nothing about tag specification. It's done intentionally due avoiding conflicts. However it's advised to add prefix v in documentation and text references. As example format v1.0.4 instead of ful...
How can I configure NetBeans to insert tabs instead of a bunch of spaces?
...ic options.
Uncheck : Expand tabs to space.
You can also select Language (PHP)
Then Click on Ok
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Whitespace Matching Regex - Java
...
For Java (not php, not javascript, not anyother):
txt.replaceAll("\\p{javaSpaceChar}{2,}"," ")
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What's the difference between “Request Payload” vs “Form Data” as seen in Chrome dev tools Network t
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PHP is evil of course. The popularity of application/x-www-form-urlencoded is defined by the popularity of PHP.
– Brian Cannard
Apr 28 '16 at 10:17
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iPad keyboard will not dismiss if modal ViewController presentation style is UIModalPresentationForm
...gle:(BOOL)animated {
[self retain];
_TempUIVC *tuivc = [[_TempUIVC alloc] init];
tuivc.modalPresentationStyle = UIModalPresentationCurrentContext;
[self presentModalViewController:tuivc animated:animated];
if (animated) {
[[NSNotificationCenter defaultCenter] addObserver:...
Check if an array is empty or exists
...iable hoisting. Make sure you use var whenever declaring a variable:
<?php echo "var image_array = ".json_encode($images);?>
// add var ^^^ here
And then make sure you never accidently redeclare that variable later:
else {
...
image_array = []; // no var here
}
...