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Rails: redirect_to with :error, but flash[:error] empty

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JavaScript: empty array, [ ] evaluates to true in conditional structures. Why is this?

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remove legend title in ggplot

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SqlAlchemy - Filtering by Relationship Attribute

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How to remove underline from a name on hover

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CSS last-child(-1)

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Getting an empty JQuery object

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Can I use an OR in regex without capturing what's enclosed?

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Django import error - no module named django.conf.urls.defaults

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Rails: Custom text for rails form_for label

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