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What are bitwise shift (bit-shift) operators and how do they work?
I've been attempting to learn C in my spare time, and other languages (C#, Java, etc.) have the same concept (and often the same operators) ...
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Mysql error 1452 - Cannot add or update a child row: a foreign key constraint fails
I'm having a bit of a strange problem. I'm trying to add a foreign key to one table that references another, but it is failing for some reason. With my limited knowledge of MySQL, the only thing that could possibly be suspect is that there is a foreign key on a different table referencing the one I ...
&& (AND) and || (OR) in IF statements
I have the following code:
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How to execute a bash command stored as a string with quotes and asterisk [duplicate]
I try to execute the following command :
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What's the best way to set a single pixel in an HTML5 canvas?
The HTML5 Canvas has no method for explicitly setting a single pixel.
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What goes into the “Controller” in “MVC”?
I think I understand the basic concepts of MVC - the Model contains the data and behaviour of the application, the View is responsible for displaying it to the user and the Controller deals with user input. What I'm uncertain about is exactly what goes in the Controller.
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Determine if the device is a smartphone or tablet? [duplicate]
I would like to get info about a device to see if it's a smartphone or tablet. How can I do it?
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Ember.js or Backbone.js for Restful backend [closed]
I already know that ember.js is a more heavy weight approach in contrast to backbone.js. I read a lot of articles about both.
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Using only CSS, show div on hover over
I would like to show a div when someone hovers over an <a> element, but I would like to do this in CSS and not JavaScript. Do you know how this can be achieved?
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What is the difference between active and passive FTP?
Can someone tell me what is the difference between active and passive FTP?
Which one is preferable?
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