大约有 48,000 项符合查询结果(耗时:0.0565秒) [XML]
Is there a RegExp.escape function in Javascript?
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@Paul: Perl quotemeta (\Q), Python re.escape, PHP preg_quote, Ruby Regexp.quote...
– bobince
Oct 3 '13 at 10:24
14
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iOS UIImagePickerController result image orientation after upload
....size.height);
transform = CGAffineTransformRotate(transform, M_PI);
break;
case UIImageOrientationLeft:
case UIImageOrientationLeftMirrored:
transform = CGAffineTransformTranslate(transform, self.size.width, 0);
transform = CGAffineTr...
How do I recursively delete a directory and its entire contents (files + sub dirs) in PHP?
...mdir contains a decent implementation:
function rrmdir($dir) {
if (is_dir($dir)) {
$objects = scandir($dir);
foreach ($objects as $object) {
if ($object != "." && $object != "..") {
if (is_dir($dir. DIRECTORY_SEPARATOR .$object) && !is_link($dir."/"...
What is stdClass in PHP?
...lternative to associative array. See this example below that shows how json_decode() allows to get an StdClass instance or an associative array.
Also but not shown in this example, SoapClient::__soapCall returns an StdClass instance.
<?php
//Example with StdClass
$json = '{ "foo": "bar", "number...
AngularJS access scope from outside js function
... over it: github.com/angular/angular.js/wiki/When-to-use-$scope.$apply(). _If you are doing if (!$scope.$$phase) $scope.$apply() it's because you are not high enough in the call stack._
– scheffield
Sep 29 '14 at 14:44
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What is the difference between JSON and Object Literal Notation?
...t
console.log('Object Literal : ', objLiteral ); // Object {foo: 42}foo: 42__proto__: Object
// This is a JSON String, like what you'd get back from an AJAX request.
var jsonString = '{"foo": 452}';
console.log('JOSN String : ', jsonString ); // {"foo": 452}
// This is how you deserialize that JSO...
UITableView load more when scrolling to bottom like Facebook application
...sBatchOfItems = try MyDataHelper.findRange(start..<end)
} catch _ {
print("query failed")
}
// update UITableView with new batch of items on main thread after query finishes
DispatchQueue.main.async {
if let newItems = thisBatchOfItems {
...
Scala: Nil vs List()
...llo", 2 -> "world").foldLeft(List[String]())( (acc, el) => acc :+ el._2) res1: List[String] = List(hello, world) Using Nil as the accumulator here wouldn't work.
– Kevin Meredith
Nov 17 '13 at 4:57
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What are the differences between -std=c++11 and -std=gnu++11?
...using the MinGW compiler, I need the extensions for a working Boost.Lexical_Cast. But, as long as you don't use any of them, you are better off sticking to the standard without extensions for maximum portability. This might come in handy if you find yourself forced to change compiler.
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How much is the overhead of smart pointers compared to normal pointers in C++?
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std::unique_ptr has memory overhead only if you provide it with some non-trivial deleter.
std::shared_ptr always has memory overhead for reference counter, though it is very small.
std::unique_ptr has time overhead only during constru...
