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Can I have multiple :before pseudo-elements for the same element?

...pseudo-element at any time. (This means an element can have both a :before and an :after pseudo-element — it just cannot have more than one of each kind.) As a result, when you have multiple :before rules matching the same element, they will all cascade and apply to a single :before pseudo-elemen...
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pull out p-values and r-squared from a linear regression

...ance of the coefficient of the single explanatory variable being non-zero) and R-squared value from a simple linear regression model? For example... ...
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Does Internet Explorer support pushState and replaceState?

Does anybody know if Internet Explorer supports the history.pushState() and history.replaceState() methods for manipulating browser history ? Considering these are just being implemented in Firefox 4, I'm not holding my breath, but does anybody know if they're coming in IE9? ...
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React.js - input losing focus when rerendering

I am just writing to text input and in onChange event i call setState , so React rerenders my UI. The problem is that the text input always lose a focus, so i need focus it again for each letter :D. ...
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++someVariable vs. someVariable++ in JavaScript

... the value of the expression is the original value" Now when used as a standalone statement, they mean the same thing: x++; ++x; The difference comes when you use the value of the expression elsewhere. For example: x = 0; y = array[x++]; // This will get array[0] x = 0; y = array[++x]; // Thi...
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How can I set the aspect ratio in matplotlib?

... Third times the charm. My guess is that this is a bug and Zhenya's answer suggests it's fixed in the latest version. I have version 0.99.1.1 and I've created the following solution: import matplotlib.pyplot as plt import numpy as np def forceAspect(ax,aspect=1): im = ax.g...
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Why does running the Flask dev server run itself twice?

I'm using Flask for developing a website and while in development I run flask using the following file: 6 Answers ...
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Can I install Python windows packages into virtualenvs?

... @CodyHatch You can as this is not my only answer on SO and there's a chance some of my other answers would be helpful to you as well :) – Piotr Dobrogost Nov 26 '13 at 16:43 ...
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mvn clean install vs. deploy vs. release

I am just learning maven, and we have recently needed to go more and more. I would like to know the difference between 2 A...
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Stream vs Views vs Iterators

What are the differences among Streams, Views (SeqView), and Iterators in scala? This is my understanding: 1 Answer ...