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Is there a null-coalescing (Elvis) operator or safe navigation operator in javascript?
...king at CoffeeScript if you want an alternative syntax. It has some shorthand that is similar to what you are looking for.
For example The Existential Operator
zip = lottery.drawWinner?().address?.zipcode
Function shortcuts
()-> // equivalent to function(){}
Sexy function calling
func '...
How to use gitignore command in git
I'm working first time on git. I have pushed my branch on github and it pushed all the library and documents into the github. Now what can I do and how can I use gitignore command to avoid the same mistake again.
...
MySQL check if a table exists without throwing an exception
...or mysql_* functions, they are officially deprecated, no longer maintained and will be removed in the future. You should update your code with PDO or MySQLi to ensure the functionality of your project in the future.
– TRiG
Jun 10 '16 at 10:39
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How to play a notification sound on websites?
...ern browsers)
<embed> (Fallback)
Codes used
MP3 for Chrome, Safari and Internet Explorer.
OGG for Firefox and Opera.
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To prevent a memory leak, the JDBC Driver has been forcibly unregistered
...iver in question), not in yours. Be happy that Tomcat did its job properly and wait until the JDBC driver vendor get it fixed so that you can upgrade the driver. On the other hand, you aren't supposed to drop a JDBC driver in webapp's /WEB-INF/lib, but only in server's /lib. If you still keep it in ...
What is the meaning of the planned “private protected” C# access modifier?
...uage feature implementation status , with planned language features for C# and VB.
6 Answers
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Why do you use typedef when declaring an enum in C++?
I haven't written any C++ in years and now I'm trying to get back into it. I then ran across this and thought about giving up:
...
How to use Session attributes in Spring-mvc
...)request.getSession().setAttribute("cart",value);
return "testJsp";
}
and you can get it from controller like this :
ShoppingCart cart = (ShoppingCart)session.getAttribute("cart");
Make your controller session scoped
@Controller
@Scope("session")
Scope the Objects ,for example you have user...
How to disable mouseout events triggered by child elements?
...est way to do this with recent versions of jQuery is to use the mouseenter and mouseleave events rather than mouseover and mouseout.
You can test the behavior quickly with:
$(".myClass").on( {
'mouseenter':function() { console.log("enter"); },
'mouseleave':function() { console.log("leave"); ...
How can I use MS Visual Studio for Android Development?
Can you use Visual Studio for Android Development?
14 Answers
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