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How do you specify that a class property is an integer?

I'm experimenting with TypeScript, and in the process of creating a class with an "ID" field that should be an integer, I have gotten a little confused. ...
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How can I override the OnBeforeUnload dialog and replace it with my own?

...dialog box appears that gives users the option to stay on the current page and retain the string that was assigned to it. The default statement that appears in the dialog box, "Are you sure you want to navigate away from this page? ... Press OK to continue, or Cancel to stay on the current page.", c...
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Java HTTPS client certificate authentication

I'm fairly new to HTTPS/SSL/TLS and I'm a bit confused over what exactly the clients are supposed to present when authenticating with certificates. ...
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Why is a ConcurrentModificationException thrown and how to debug it

... (a HashMap used indirectly by the JPA, it so happens), but apparently randomly the code throws a ConcurrentModificationException . What is causing it and how do I fix this problem? By using some synchronization, perhaps? ...
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Alternate FizzBuzz Questions [closed]

...n a small list of relatively simple programming problems used to weed out candidates, just like FizzBuzz. Here are some of the problems I've seen, in order of increasing difficulty: Reverse a string Reverse a sentence ("bob likes dogs" -> "dogs likes bob") Find the minimum value in a list Find ...
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Difference between & and && in Java? [duplicate]

I was just wondering what the difference between & and && is? A few days I wrote a condition for an if statement the looked something like: ...
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How do I REALLY reset the Visual Studio window layout?

I had a plugin installed in Visual Studio 2008, and it created some extra dockable windows. I have uninstalled it, and I can't get rid of the windows it created - I close them, but they always come back. They're just empty windows now, since the plugin is no longer present, but nothing I've tried ...
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jQuery: Return data after ajax call success [duplicate]

... it's waiting for the response. You can pass in a callback function that handles the result: function testAjax(handleData) { $.ajax({ url:"getvalue.php", success:function(data) { handleData(data); } }); } Call it like this: testAjax(function(output){ // here you use t...
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Best way to iterate through a Perl array

Which is the best implementation(in terms of speed and memory usage) for iterating through a Perl array? Is there any better way? ( @Array need not be retained). ...
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What is the difference between Integer and int in Java?

...represent. int.parseInt("1") doesn't make sense because int is not a class and therefore doesn't have any methods. Integer is a class, no different from any other in the Java language. Variables of type Integer store references to Integer objects, just as with any other reference (object) type. Int...