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Immutability of Strings in Java
...ring. You can change what it points to, but not that which it points at.
Take this code, for example:
String s1 = "Hello";
String s2 = s1;
// s1 and s2 now point at the same string - "Hello"
Now, there is nothing1 we could do to s1 that would affect the value of s2. They refer to the same object - ...
MySQL select where column is not empty
...mpty string:
select phone, phone2
from jewishyellow.users
where phone like '813%' and phone2<>''
Note that NULL value is interpreted as false.
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Call UrlHelper in models in ASP.NET MVC
I need to generate some URLs in a model in ASP.NET MVC. I'd like to call something like UrlHelper.Action() which uses the routes to generate the URL. I don't mind filling the usual blanks, like the hostname, scheme and so on.
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Limit results in jQuery UI Autocomplete
...e source parameter and then call slice on the filtered array.
Here's a working example: http://jsfiddle.net/andrewwhitaker/vqwBP/
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How can I comment a single line in XML?
... comment a line in XML and have the comment end automatically on a linebreak.
XML has only one definition for a comment:
'<!--' ((Char - '-') | ('-' (Char - '-')))* '-->'
XML forbids -- in comments to maintain compatibility with SGML.
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Why are Python's 'private' methods not actually private?
...d variables within a class by prepending double underscores to the name, like this: __myPrivateMethod() . How, then, can one explain this
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Working with select using AngularJS's ng-options
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One thing to note is that ngModel is required for ngOptions to work... note the ng-model="blah" which is saying "set $scope.blah to the selected value".
Try this:
<select ng-model="blah" ng-options="item.ID as item.Title for item in items"></select>
Here's more from AngularJ...
$watch an object
...ant to watch for changes in a dictionary, but for some reason watch callback is not called.
8 Answers
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Oracle Differences between NVL and Coalesce
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Jon Heller
30.3k33 gold badges6262 silver badges110110 bronze badges
answered Jun 4 '09 at 12:03
QuassnoiQuassnoi
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What does cherry-picking a commit with Git mean?
Recently, I have been asked to cherry-pick a commit.
12 Answers
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