大约有 47,000 项符合查询结果（耗时：0.0615秒） [XML]
Detecting superfluous #includes in C/C++?
I often find that the headers section of a file get larger and larger all the time but it never gets smaller. Throughout the life of a source file classes may have moved and been refactored and it's very possible that there are quite a few #includes that don't need to be there and anymore. Leaving...
Easiest way to split a string on newlines in .NET?
...know of to split strings is with the Split method. However that will not allow me to (easily) split on a newline, so what is the best way to do it?
...
Access Control Request Headers, is added to header in AJAX request with jQuery
...ctual request; note that the HTTP method is OPTIONS, not POST. It was actually the 'pre-flight' request that the browser makes to determine whether a cross-domain AJAX request should be allowed:
http://www.w3.org/TR/cors/
The Access-Control-Request-Headers header in the pre-flight request include...
How do I auto-reload a Chrome extension I'm developing?
...
You can use "Extensions Reloader" for Chrome:
Reloads all unpacked extensions using the extension's toolbar button or by browsing to "http://reload.extensions"
If you've ever developed a Chrome extension, you might have wanted to
automate the process of reloading your unp...
Stop/Close webcam which is opened by navigator.getUserMedia
...
EDIT
Since this answer has been originally posted the browser API has changed.
.stop() is no longer available on the stream that gets passed to the callback.
The developer will have to access the tracks that make up the stream (audio or video) and stop each of th...
Calling a Java method with no name
... System.out.print("x ");
}
is a static initialization block, and is called when the class is loaded. You can have as many of them in your class as you want, and they will be executed in order of their appearance (from top to bottom).
This:
{
System.out.print("y ");
}
is an ...
Checking if a key exists in a JavaScript object?
... testing whether a key exists. What if the key exists but the value is actually undefined?
var obj = { key: undefined };
obj["key"] !== undefined // false, but the key exists!
You should instead use the in operator:
"key" in obj // true, regardless of the actual value
If you want to check if a...
Printing hexadecimal characters in C
... signed on your system. In C, vararg functions such as printf will promote all integers smaller than int to int. Since char is an integer (8-bit signed integer in your case), your chars are being promoted to int via sign-extension.
Since c0 and 80 have a leading 1-bit (and are negative as an 8-bit ...
Writing outputs to log file and console
...and errors to log file, database connection details, etc ) which redirects all the outputs ( echo messages ) and errors to the log file from the executed script using the following code:
...
jQuery click events firing multiple times
...
A click handler ain't a one-off throwaway thing. Especially when it's the bulky if-if-if shown in the question. You're supposed to attach it and let it do its work as long as the page lives.
– Marco Faustinelli
Jun 19 '15 at 5:44
...