大约有 35,487 项符合查询结果（耗时：0.0515秒） [XML]
How do I check if file exists in jQuery or pure JavaScript?
... {
//file exists
}
});
EDIT:
Here is the code for checking 404 status, without using jQuery
function UrlExists(url)
{
var http = new XMLHttpRequest();
http.open('HEAD', url, false);
http.send();
return http.status!=404;
}
Small changes and it could check for status ...
Setting Environment Variables for Node to retrieve
...
402
Environment variables (in this case) are being used to pass credentials to your application. US...
Should I use tag for icons instead of ? [closed]
...
606
Why are they using <i> tag to display icons ?
Because it is:
Short
i stands for ic...
How to copy text programmatically in my Android app?
...|
edited Jun 22 '18 at 16:09
Edric
15.5k99 gold badges5656 silver badges7171 bronze badges
answered Oct ...
How to turn a String into a JavaScript function call? [duplicate]
...allum Watkins
2,22222 gold badges2323 silver badges4040 bronze badges
answered May 26 '09 at 20:39
PatrikAkerstrandPatrikAkerstrand
...
Logging Clientside JavaScript Errors on Server [closed]
...
|
edited Jun 30 '15 at 12:53
Benjamin Gruenbaum
235k7777 gold badges459459 silver badges466466 bronze badges
...
Instantiating a generic class in Java [duplicate]
...
10 Answers
10
Active
...
How to theme the ENTIRE Xcode IDE to light-on-dark?
...bug area, and utility views with the following commands:
Navigator : ⌘0
Debug Area : ⇧⌘Y
Utility : ⌥⌘0
So, if you set your theme to one with a dark background, you can quickly close/open the lighter portions of the IDE as needed.
You can also change the debug console to have a di...
Is there a VB.NET equivalent of C# out parameters?
...
|
edited Dec 5 '10 at 12:51
answered Dec 5 '10 at 12:28
...
How to install packages using pip according to the requirements.txt file from a local directory?
... |
edited Jan 26 '17 at 10:45
Paweł Prażak
2,69911 gold badge2222 silver badges3737 bronze badges
ans...