大约有 10,700 项符合查询结果（耗时：0.0218秒） [XML]
How can I detect if a selector returns null?
...stingElement.doSomething(); //<-executes on #iExist
http://jsfiddle.net/vhbSG/
share
|
improve this answer
|
follow
|
...
Matching an empty input box using CSS
...hn Doe" required/>
For reference, JSFiddle here: http://jsfiddle.net/0sf6m46j/
share
|
improve this answer
|
follow
|
...
Ruby, !! operator (a/k/a the double-bang) [duplicate]
...only false-y values are false and nil. Everything else is truth-y: phrogz.net/ProgrammingRuby/language.html#truthvalues I've edited my answer to make this more clear.
– pkaeding
Aug 15 '12 at 23:17
...
Inserting a tab character into text using C#
...ill display something that is NOT ALWAYS correctly aligned.
Example in VB.Net:
Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
TextBox1.Text = "Bernard" + vbTab + "32"
TextBox2.Text = "Luc" + vbTab + "47"
TextBox3.Text = "François-Victor" + vbTab + "12"
E...
Loop through a date range with JavaScript
...
I have tried multiple solutions on the internet. Weird is that it skips sometimes some days. Like 1.12, 2.12, 3.12, 5.12... (notice that 4.12 is skipped) i have no idea why it happens... Anyone got this problem and found a solution?
– Erik Kubica
...
Bad class file magic or version
...
get the latest progaurd.jar file from here (http://proguard.sourceforge.net)
replace the existing android-sdks/tools/proguard/lib/proguard.jar with new .jar file.
Hopefully this should help you.
If u using java 8 then you should upgrade to proguard 5.x coz proguard 4.x does not support java 8.
...
Initializing C# auto-properties [duplicate]
...
This is one of those places where the VB.NET team got it right - in VB you can declare your property and set it in the same line like this: Public Property MyProp As String = "asdf". Unfortunately, you can't declare a public getter and a private setter like you can...
jQuery event for images loaded
...d() should be enough. Tested in current FF and Chrome, and IE6-9: jsfiddle.net/b9chris/tXVCe/2
– Chris Moschini
Jun 28 '12 at 22:48
1
...
Test if number is odd or even
... Above link is dead. Here's another good explanation: catonmat.net/blog/low-level-bit-hacks-you-absolutely-must-know
– kasimir
Jun 11 '15 at 11:25
add a comment
...
Viewing contents of a .jar file
...le?
I'm looking for something equivalent to the very useful Lutz Roeder .NET Reflector - for Java
31 Answers
...