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ReactJS state vs prop

...ls so much as it cares about values and how they flow through your app. Ideally, your post model would be stored in a single component at the root. You then create child components that each consume parts of the model. You can pass callbacks down to the children that need to modify your data, and c...
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Failed to instantiate module [$injector:unpr] Unknown provider: $routeProvider

...gt; API Reference You also have to add ngRoute as a dependency for your application: var app = angular.module('MyApp', ['ngRoute', ...]); If instead you are planning on using angular-ui-router or the like then just remove the $routeProvider dependency from your module .config() and substitute...
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How to refresh / invalidate $resource cache in AngularJS

..., thank you! Exactly what I was looking for. For those wondering, you can call $cacheFactory.get('$http').remove(key), with key being the relative URL of your resource (ex: /api/user/current/51a9020d91799f1e9b8db12f). – Alexandre Bulté Jun 12 '13 at 12:25 ...
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How can I sharpen an image in OpenCV?

... [-1,-1,-1]]) sharpened = cv2.filter2D(image, -1, kernel) # applying the sharpening kernel to the input image & displaying it. cv2.imshow('Image Sharpening', sharpened) cv2.waitKey(0) cv2.destroyAllWindows() There is another method of subtracting a blurred version of ...
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difference between variables inside and outside of __init__()

Is there any difference at all between these classes besides the name? 10 Answers 10 ...
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What is an AngularJS directive?

...see the clear definition of jQuery as an example)? A directive is essentially a function† that executes when the Angular compiler finds it in the DOM. The function(s) can do almost anything, which is why I think it is rather difficult to define what a directive is. Each directive has a name (l...
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How to pass object with NSNotificationCenter

...when you do the addObserver(). The receiveTestNotification should only be called when observing a specific notification. – Johan Karlsson Feb 17 '16 at 15:06 1 ...
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You have already activated X, but your Gemfile requires Y

... Using bundle exec is the right way to do this. Basically what's happening is that you've updated rake to 0.9.2 which now conflicts with the version specified in your Gemfile. Previously the latest version of rake you had matched the version in your Gemfile, so you didn't get a...
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How to require a controller in an angularjs directive

...}); Each directive will get its own instance of the controller, but this allows you to share the logic between as many components as you want. Require a Controller If you want to share the same instance of a controller, then you use require. require ensures the presence of another directive an...
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What is the difference between public, protected, package-private and private in Java?

...e MyClass and I'm doing AnotherClass extends MyClass I will have access to all protected and public methods and properties from within AnotherClass. If I do MyClass myClass = new MyClass(); in AnotherClass somewhere - let's say the constructor - I will only have access to the public methods if it is...