大约有 40,000 项符合查询结果（耗时：0.0439秒） [XML]
How to check null objects in jQuery
...em to have enough reputation to vote down the answer...)
Wolf wrote:
Calling length property on undefined
or a null object will cause IE and
webkit browsers to fail!
Instead try this:
// NOTE!! THE FOLLOWING IS WRONG; DO NOT USE! -- EleotleCram
if($("#something") !== null){
// do ...
完美解决phpcms批量移动内容后，新闻心情、评论排行等不更新的问题 - 更多...
... */
public function remove() {
if(isset($_POST['dosubmit'])) {
$this->content_check_db = pc_base::load_model('content_check_model');
$this->hits_db = pc_base::load_model('hits_model');
$this-...
Extract month and year from a zoo::yearmon object
...
Ha thank you for this answer. It especially beats the other solutions when you want to do something like if(year(date1) > 2014){year(date1) <- year(date1) - 100}
– Vincent
Feb 10 '14 at 9:34
...
The character encoding of the HTML document was not declared
...head:
<meta charset="UTF-8">
the character encoding (which is actually UTF-8) of the html document was not declared
share
|
improve this answer
|
follow
...
Get underlined text with Markdown
...
I guess this is because underlined text is hard to read, and that it's usually used for hyperlinks.
share
|
improve this answer
|
follow
|
...
What are the differences between -std=c++11 and -std=gnu++11?
...oid extensions because I don't recommend doing anything that isn't specifically defined by the Standard... but even then, "violates" is a strange and loaded term, when a lot of these extensions are, to use Standardese, just implementation-defining or specifying things that the Standard is silent on ...
When to use ' (or quote) in Lisp?
...al operator (quote) (or equivalent ' ) function does, yet this has been all over Lisp code that I've seen.
10 Answers
...
pretty-print JSON using JavaScript
...or sure) and not HTML. Output can be seen inside console. You can edit the _variables inside the function adding some more styling.
function JSONstringify(json) {
if (typeof json != 'string') {
json = JSON.stringify(json, undefined, '\t');
}
var
arr = [],
_stri...
Why use a public method in an internal class?
...presents the key, documented functionality provided by this object."
Basically, my attitude is: suppose I decided to make this internal class into a public class. In order to do that, I want to change exactly one thing: the accessibility of the class. If turning an internal class into a public clas...
How JavaScript closures are garbage collected
...e expected behavior.
From Mozilla's Memory management page: "As of 2012, all modern browsers ship a mark-and-sweep garbage-collector." "Limitation: objects need to be made explicitly unreachable".
In your examples where it fails some is still reachable in the closure. I tried two ways to make it...