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How do you remove all the options of a select box and then add one option and select it with jQuery?
...s create a memory leak? The option elements are now inaccessible but still allocated.
– Synetech
Mar 6 '19 at 19:57
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Format number to 2 decimal places
...://www.w3resource.com/mysql/mathematical-functions/mysql-truncate-function.php
With rounding:
ROUND(0.166, 2)
-- will be evaluated to 0.17
ROUND(0.164, 2)
-- will be evaluated to 0.16
docs: http://www.w3resource.com/mysql/mathematical-functions/mysql-round-function.php
...
Passing parameters to addTarget:action:forControlEvents
...i < _phoneNumbers.count; i++) {
UIButton *phoneButton = [[UIButton alloc] initWithFrame:someFrame];
[phoneButton setTitle:_phoneNumbers[i] forState:UIControlStateNormal];
[phoneButton setTag:i];
[phoneButton addTarget:self
action:@selector(call:)
f...
UINavigationBar Hide back Button Text
...
Objective-C
[self.navigationItem setBackBarButtonItem:[[UIBarButtonItem alloc] initWithTitle:@"" style:UIBarButtonItemStylePlain target:nil action:nil]];
Swift
self.navigationItem.backBarButtonItem = UIBarButtonItem(title: "", style: .plain, target: nil, action: nil)
This should be done on t...
IIS_IUSRS and IUSR permissions in IIS8
...IS worker processes run third-party code by default (Classic ASP, ASP.NET, PHP code), it was time to isolate IIS worker processes from other Windows system services and run IIS worker processes under unique identities. The Windows operating system provides a feature called "Virtual Accounts" that al...
Are unused CSS images downloaded?
...e="text/css">
.nonexistent {
background: url('index.php?foo');
}
</style>
</head>
<body>
<?php if(isset($_GET['foo'])) {
file_put_contents('test.txt', $_SERVER['HTTP_USER_AGENT']);
} ?>
</body>
</html>
If te...
Is it possible to use a div as content for Twitter's Popover
... put a <div> inside the popover. Potentially, I would like to use php and mysql in there, but if i could get a div to work i think i can figure out the rest. I tried setting data-content to a div ID, but it didnt work.
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Multiple Updates in MySQL
...ice for dynamic updating too. For example, I used that solution in loop in php: $commandTxt = 'UPDATE operations SET chunk_finished = CASE id '; foreach ($blockOperationChecked as $operationID => $operationChecked) $commandTxt .= " WHEN $operationID THEN $ope...
Make copy of an array
...t src.clone() is more readable and has far less opportunity for error than allocating a new array and doing arraycopy. (And also happens to be fast.)
– Brian Goetz
Mar 17 at 14:03
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Deleting a file in VBA
... has much more work to do. Additionally, avoid using "" in VB as it always allocates a new string. Use vbNullString instead as it is a constant and does not uses more memory.
– Renaud Bompuis
Nov 12 '14 at 2:25
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