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How to know if user is logged in with passport.js?

... 211 If user is logged in, passport.js will create user object in req for every request in express.j...
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MongoDB: How to query for records where field is null or not set?

... 171 If the sent_at field is not there when its not set then: db.emails.count({sent_at: {$exists: ...
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Create array of symbols

... The original answer was written back in September '11, but, starting from Ruby 2.0, there is a shorter way to create an array of symbols! This literal: %i[address city state postal country] will do exactly what you want. ...
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How do I make a redirect in PHP?

... 1728 Summary of existing answers plus my own two cents: 1. Basic answer You can use the header() f...
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what is the use of xsi:schemaLocation?

... | edited Dec 19 '16 at 16:03 rogerdpack 46.2k3030 gold badges200200 silver badges315315 bronze badges ...
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Android: How can I get the current foreground activity (from a service)?

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How to do INSERT into a table records extracted from another table

...: INSERT INTO Table2(LongIntColumn2, CurrencyColumn2) SELECT LongIntColumn1, Avg(CurrencyColumn) as CurrencyColumn1 FROM Table1 GROUP BY LongIntColumn1; share | improve this answer | ...
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Rename multiple files in a directory in Python [duplicate]

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Using $_POST to get select option value from HTML

...<option> tags. <select name="taskOption"> <option value="1">First</option> <option value="2">Second</option> <option value="3">Third</option> </select> share ...
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what are the .map files used for in Bootstrap 3.x?

... | edited Jun 20 at 9:12 Community♦ 111 silver badge answered Feb 1 '14 at 22:50 ...