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adding and removing classes in angularJs using ng-click

...nge it from the controller. Here is an example of how to do this: var app = angular.module("ap",[]); app.controller("con",function($scope){ $scope.class = "red"; $scope.changeClass = function(){ if ($scope.class === "red") $scope.class = "blue"; else $scope.clas...
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Postgres and Indexes on Foreign Keys and Primary Keys

...oreign keys (more in the docs). \d <table_name> in "psql" shows a description of a table including all its indexes. share | improve this answer | follow ...
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Android global variable

...n I create global variable keep remain values around the life cycle of the application regardless which activity running. 1...
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How to enable/disable bluetooth programmatically in android

... permission to turn on Bluetooth. The enable() method is provided only for applications that include a user interface for changing system settings, such as a "power manager" app. What does it mean? For ex. I made a little app from your code and it worked. But if I want to upload to Play Store, it wo...
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Circle-Rectangle collision detection (intersection)

...with the circle itself, not necessarily the circle's boundary. Anyway, the description above, "check if the foot of the perpendicular from P [the circle's centre] to the line is close enough and between the endpoints, and check the endpoints otherwise" will still work — e.g. the endpoints lie insi...
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Yes/No message box using QMessageBox

...uestion for that. Example in a hypothetical widget's slot: #include <QApplication> #include <QMessageBox> #include <QDebug> // ... void MyWidget::someSlot() { QMessageBox::StandardButton reply; reply = QMessageBox::question(this, "Test", "Quit?", ...
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How to implement OnFragmentInteractionListener

I have a wizard generated app with navigation drawer in android studio 0.8.2 12 Answers ...
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How to run .APK file on emulator [duplicate]

... Steps (These apply for Linux. For other OS, visit here) - Copy the apk file to platform-tools in android-sdk linux folder. Open Terminal and navigate to platform-tools folder in android-sdk. Then Execute this command - ./adb instal...
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What is HTML5 ARIA?

... WAI-ARIA is a spec defining support for accessible web apps. It defines bunch of markup extensions (mostly as attributes on HTML5 elements), which can be used by the web app developer to provide additional information about the semantics of the various elements to assistive techn...
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LINQ to Entities only supports casting EDM primitive or enumeration types with IEntity interface

... where T : class, IEntity { T entity; // Allow reporting more descriptive error messages. try { entity = collection.Find(id); } ... } share | improve this answ...