大约有 30,000 项符合查询结果（耗时：0.0375秒） [XML]
How to Apply Gradient to background view of iOS Swift App
...
I'm getting this error fatal error: array element cannot be bridged to Objective-C, when assigning to .colors property. What may be wrong with this?
– Tricertops
Jul 20 '14 at 19:10
...
Inputting a default image in case the src attribute of an html is not valid?
...e. Maybe you wanna use JQuery to hook the event.
<img src="foo.jpg" onerror="if (this.src != 'error.jpg') this.src = 'error.jpg';">
Updated with jacquargs error guard
Updated: CSS only solution
I recently saw Vitaly Friedman demo a great CSS solution I wasn't aware of. The idea is to appl...
examining history of deleted file
... This doesn't seem to work for deleted files. If I try this, I get this error message: svn cat [url]/trunk/include/syeka/poster_funk.incl.php -r 50 > out.txt svn: '/admintools/!svn/bc/131/trunk/include/syeka/poster_funk.incl.php' path not found See @Bert Huijben's response further down this...
What's the difference between a Future and a Promise?
...;
})
...
.then(function(result){
console.log(result);
})
.catch(function(error){
console.log(error);
})
which makes asynchronous computation to look like synchronous:
try {
op1Result = syncOp1();
// do something
op1Result = syncOp2();
// do something more
op3Result = syncOp3();
//...
Finding differences between elements of a list
Given a list of numbers, how does one find differences between every ( i )-th elements and its ( i+1 )-th?
10 Answers
...
Example of multipart/form-data
...ve
Content-Type: multipart/form-data; boundary=---------------------------9051914041544843365972754266
Content-Length: 554
-----------------------------9051914041544843365972754266
Content-Disposition: form-data; name="text"
text default
-----------------------------9051914041544843365972754266
Co...
How to prevent SIGPIPEs (or handle them properly)
...
You generally want to ignore the SIGPIPE and handle the error directly in your code. This is because signal handlers in C have many restrictions on what they can do.
The most portable way to do this is to set the SIGPIPE handler to SIG_IGN. This will prevent any socket or pipe ...
jQuery $.ajax(), $.post sending “OPTIONS” as REQUEST_METHOD in Firefox
...
The reason for the error is the same origin policy. It only allows you to do XMLHTTPRequests to your own domain. See if you can use a JSONP callback instead:
$.getJSON( 'http://<url>/api.php?callback=?', function ( data ) { alert ( data ...
join list of lists in python [duplicate]
Is the a short syntax for joining a list of lists into a single list( or iterator) in python?
15 Answers
...
“std::endl” vs “\n”
...
@Omnifarious: No std::cerr should be reserved for errors. The two streams are not synced together so if you output some text to cout it may be buffered and the cerr will go direct to the output this resulting in a mixed mode display. Use cerr for what it is supposed to be fo...