大约有 25,300 项符合查询结果（耗时：0.0367秒） [XML]
How to validate an email address in JavaScript
...
This doesn't even accept the examples in RFC 822. Some simple cases it doesn't match a\@b@c.com, a(b)@c.com. See the RFC for more. Here's a regex that won't reject any valid addresses [^@]+@[^@]+\.[^@]+ and protects against common errors.
– Vroo
...
Android 4.3 Bluetooth Low Energy unstable
... Android 4.3, I have noticed that after I connect a device for the first time I am rarely able to successfully connect to / communicate with that device or any other device again.
...
Loading Backbone and Underscore using RequireJS
...e, Underscore automatically registers itself as a module, but Backbone assumes Underscore is available globally. I should also note that Backbone doesn't seem to register itself as a module which makes it kind of inconsistent with the other libs. This is the best main.js I could come up with that wo...
How do I start a process from C#?
...here you have limited control over the process, is to use the static Start method on the System.Diagnostics.Process class...
using System.Diagnostics;
...
Process.Start("process.exe");
The alternative is to use an instance of the Process class. This allows much more control over the process inclu...
Caching a jquery ajax response in javascript/browser
...GET and HEAD request.
You could roll your own solution as you said with something along these lines :
var localCache = {
data: {},
remove: function (url) {
delete localCache.data[url];
},
exist: function (url) {
return localCache.data.hasOwnProperty(url) && ...
Regular expression for letters, numbers and - _
...
The pattern you want is something like (see it on rubular.com):
^[a-zA-Z0-9_.-]*$
Explanation:
^ is the beginning of the line anchor
$ is the end of the line anchor
[...] is a character class definition
* is "zero-or-more" repetition
Note that ...
How to write Unicode characters to the console?
...OutputEncoding = System.Text.Encoding.UTF8;
(MSDN link to supporting documentation.)
And here's a little console test app you may find handy:
C#
using System;
using System.Text;
public static class ConsoleOutputTest {
public static void Main() {
Console.OutputEncoding = System.Text...
Go build: “Cannot find package” (even though GOPATH is set)
...t source files.
Set $GOPATH to a valid directory, e.g. export GOPATH="$HOME/go"
Move foobar.go to $GOPATH/src/foobar/foobar.go and building should work just fine.
Additional recommended steps:
Add $GOPATH/bin to your $PATH by: PATH="$GOPATH/bin:$PATH"
Move main.go to a subfolder of $GOPATH/src...
Where is the Java SDK folder in my computer? Ubuntu 12.04
...ctually a symbolic link to /etc/alternatives/java.
Dig deeper using the same method above:
Step 3:
$ ls -l /etc/alternatives/java
lrwxrwxrwx 1 root root 31 2009-01-15 18:34 /etc/alternatives/java -> /usr/local/jre1.6.0_07/bin/java
So, thats the actual location of java: /usr/local/jre.....
Y...
Why would one use the Publish/Subscribe pattern (in JS/jQuery)?
So, a colleague introduced me to the publish/subscribe pattern (in JS/jQuery), but I'm having a hard time getting to grips with why one would use this pattern over 'normal' JavaScript/jQuery.
...