大约有 48,000 项符合查询结果（耗时：0.1477秒） [XML]
How to toggle a boolean?
...ans that by nature the variable has already been initialized. You could expand it to bool = !bool || true; to have a default, I suppose.
– Jordan
May 22 '14 at 0:53
3
...
Access Control Request Headers, is added to header in AJAX request with jQuery
...
This code below works for me. I always use only single quotes, and it works fine. I suggest you should use only single quotes or only double quotes, but not mixed up.
$.ajax({
url: 'YourRestEndPoint',
headers: {
'Authorization':'Basic xxxxxxxxxxxxx',
'X-CSRF-TOKE...
Hide Utility Class Constructor : Utility classes should not have a public or default constructor
...
If this class is only a utility class, you should make the class final and define a private constructor:
public final class FilePathHelper {
private FilePathHelper() {
//not called
}
}
This prevents the default parameter-less constructor from being used elsewhere in your code. Ad...
Access to Modified Closure (2)
...need to re-declare a variable inside the foreach - otherwise it is shared, and all your handlers will use the last string:
foreach (string list in lists)
{
string tmp = list;
Button btn = new Button();
btn.Click += new EventHandler(delegate { MessageBox.Show(tmp); });
}
Significantly,...
Instance v state variables in react.js
...ld only be done by setState as suggested in a comment), React calls render and makes any necessary changes to the real DOM.
Because the value of timeout has no effect on the rendering of your component, it shouldn't live in state. Putting it there would cause unnecessary calls to render.
...
How to display nodejs raw Buffer data as Hex string
... [DEP0005] DeprecationWarning: Buffer() is deprecated due to security and usability issues. Please use the Buffer.alloc(), Buffer.allocUnsafe(), or Buffer.from() methods instead. So now it should be Buffer.from( buf.toString('hex'),'hex');
– flob
Mar 12 '...
Latex Remove Spaces Between Items in List
...numitem package provides a lot of features to customize bullets, numbering and lengths.
The paralist package provides very compact lists: compactitem, compactenum and even lists within paragraphs like inparaenum and inparaitem.
...
:: (double colon) operator in Java 8
I was exploring the Java 8 source and found this particular part of code very surprising:
17 Answers
...
querySelector, wildcard element match?
... Thanks, I meant the tag name.
– Erik Andersson
Jan 3 '12 at 15:32
hmm I can't do document.querySelecto...
Comparing two byte arrays in .NET
...t it's not often you're comparing enough data for it to make a difference, and if you are, you really need to benchmark this for your own case, for a myriad of reasons. For example, note the creator of the unsafe answer notes a difference of 7x slow, as opposed to 50x slower (the unsafe method's spe...