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How do you add CSS with Javascript?

How do you add CSS rules (eg strong { color: red } ) by use of Javascript? 14 Answers ...
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How to center canvas in html5

I've been searching for a solution for a while now, but haven't found anything. Maybe it's just my search terms. Well, I'm trying to make the canvas center according to the size of the browser window. The canvas is 800x600. And if the window gets below 800x600, it should resize as well(but that's no...
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Rails: where does the infamous “current_user” come from?

... It is defined by several gems, e.g. Devise You'll need to store the user_id somewhere, usually in the session after logging in. It also assumes your app has and needs users, authentication, etc. Typically, it's something like: class ApplicationController < ActionController::Base ...
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What is the default form HTTP method?

When an HTML form is submitted without specifying a method, what is the default HTTP method used? GET or POST? 5 Answers ...
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xcodebuild says does not contain scheme

...heme file -- I had this problem appear while setting up my own projects! For posterity, or at least anyone getting here from a search, here are two versions of things -- the "I'm busy, so just the facts please" version and a more involved discussion and rationale. Both of these versions assume you...
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How to convert Strings to and from UTF8 byte arrays in Java

In Java, I have a String and I want to encode it as a byte array (in UTF8, or some other encoding). Alternately, I have a byte array (in some known encoding) and I want to convert it into a Java String. How do I do these conversions? ...
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Make footer stick to bottom of page correctly [duplicate]

... bottom of the screen if the content doesn't go all the way to the bottom, or be at the bottom of the content if the content requires scroll bars. If the content doesn't require scroll bars, it works perfectly, but when the content is too long, the footer is still in the same spot, sitting right on...
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indexOf method in an object array?

... This should honestly be the accepted answer. Most browsers nowadays support Array.prototype.map() – AlbertEngelB Jun 27 '13 at 21:06 10 ...
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Outputting data from unit test in python

... from a failed test, so I can examine it to help deduce what caused the error? I am aware of the ability to create a customized message, which can carry some information, but sometimes you might deal with more complex data, that can't easily be represented as a string. ...
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What's the difference between session.Merge and session.SaveOrUpdate?

I notice sometimes with my parent/child objects or many-to-many relationships, I need to call either SaveOrUpdate or Merge . Usually, when I need to call SaveOrUpdate , the exception I get on calling Merge has to do with transient objects not being saved first. ...