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Difference between objectForKey and valueForKey?

What is the difference between objectForKey and valueForKey ? I looked both up in the documentation and they seemed the same to me. ...
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How to update a plot in matplotlib?

...tting, you can just update the data of the plot objects. You'll need to make some changes in your code, but this should be much, much faster than replotting things every time. However, the shape of the data that you're plotting can't change, and if the range of your data is changing, you'll need t...
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JavaScript DOM remove element

... removeChild should be invoked on the parent, i.e.: parent.removeChild(child); In your example, you should be doing something like: if (frameid) { frameid.parentNode.removeChild(frameid); } ...
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Print text instead of value from C enum

... Tyler McHenryTyler McHenry 66.2k1515 gold badges112112 silver badges157157 bronze badges ...
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Download a specific tag with Git

...ry. After the clone, you can list the tags with $ git tag -l and then checkout a specific tag: $ git checkout tags/<tag_name> Even better, checkout and create a branch (otherwise you will be on a branch named after the revision number of tag): $ git checkout tags/<tag_name> -b <b...
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How to create a colored 1x1 UIImage on the iPhone dynamically?

I would like to create a 1x1 UIImage dynamically based on a UIColor. 6 Answers 6 ...
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How to use HTML Agility pack

How do I use the HTML Agility Pack ? 7 Answers 7 ...
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Making text background transparent but not text itself

So I am having a problem. I have looked around and looked around but no luck. I would like to make the background of my body transparent but leave the text non transparent. As it is right now I keep making both the same opacity. Here is my code: ...
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vs in Generics

... The out keyword in generics is used to denote that the type T in the interface is covariant. See Covariance and contravariance for details. The classic example is IEnumerable<out T>. Since IEnumerable<out T> is covari...
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How to select/get drop down option in Selenium 2

...label in a drop down menu or get the selected value of a drop down. Do you know how to do that in Selenium 2? 8 Answers ...