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How can you do anything useful without mutable state?

...lection and invoke the anonymous function for each item. Very handy :) I know, printing numbers isn't exactly impressive. However, we can use the same approach with games: hold all state in the stack and create a new object with our changes in the recursive call. In this way, each frame is a statel...
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What Xcode keyboard shortcuts do you use regularly? [closed]

...quently use cmd-option-j to filter then navigate to source files. However now I find the open quickly command better (cmd-shift-O , type a few chars, return) – Robert Nov 30 '12 at 12:45 ...
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Is there a way that I can check if a data attribute exists?

... been set with the .data() method, e.g. $('#dataTable').data('timer', Date.now()). It seems the OP wants to check that the actual data attribute is there. @niiru's solution (or the one you offer in a comment to that solution) is better, in this case. – Noyo Dec...
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What is a difference between

... arrays are what we call reifiable types. This means that at runtime Java knows that this array was actually instantiated as an array of integers which simply happens to be accessed through a reference of type Number[]. So, as you can see, one thing is the actual type of the object, and another thin...
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How can I get the current screen orientation?

...se note that getOrient.getWidth() and getOrient.getHeight() are deprecated now. – valerybodak Mar 27 '15 at 7:31 Shoul...
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How to check if a Ruby object is a Boolean

...String".boolean? => false >> 1.boolean? => false >> Time.now.boolean? => false >> nil.boolean? => false >> true.boolean? => true >> false.boolean? => true >> (1 ==1).boolean? => true >> (1 ==2).boolean? => true ...
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How to use nodejs to open default browser and navigate to a specific URL

... Please update to suggest opn instead of open as the latter is deprecated now. – Samir Aguiar Jan 25 '17 at 12:48  |  show 7 more comments ...
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How to pass a class type as a function parameter

...class of the instances of returningClass handler(returningClass()) } Now there's the problem of constructing an instance of T to pass to handler: if you try and run the code right now the compiler will complain that T is not constructible with (). And rightfully so: T has to be explicitly cons...
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Best way to represent a Grid or Table in AngularJS with Bootstrap 3? [closed]

... ng-grid 3.0.7 is now released, and it worked well for me (now called ui-grid) – Kimball Robinson Jan 6 '16 at 20:58 1 ...
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How to access a mobile's camera from a web app?

...ted by this device" - but I am on safari and have ios7 - why? – Dan just now edit – Dan Dec 16 '13 at 0:05 10 ...