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How random is JavaScript's Math.random?

For 6 years I've had a random number generator page on my website. For a long time, it was the first or second result on Google for "random number generator" and has been used to decide dozens, if not hundreds of contests and drawings on discussion forums and blogs (I know because I see the referr...
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How do I hide the status bar in a Swift iOS app?

I'd like to remove the status bar at the top of the screen. 27 Answers 27 ...
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How do I get list of all tables in a database using TSQL?

What is the best way to get the names of all of the tables in a specific database on SQL Server? 17 Answers ...
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Where can I find my .emacs file for Emacs running on Windows?

I tried looking for the .emacs file for my Windows installation for Emacs, but I could not find it. Does it have the same filename under Windows as in Unix? ...
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PHP mkdir: Permission denied problem

I am trying to create a directory with PHP mkdir function but I get an error as follows: Warning: mkdir() [function.mkdir]: Permission denied in ... . How to settle down the problem? ...
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Get user profile picture by Id

I'm now working on a web application which is mostly based of facebook graph api. I hold some data about users - actually , the possible public data available - such as name and id. I also know that a profile picture is a part of the public data, and I wondered how I'll be able to get a direct link ...
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What's the $unwind operator in MongoDB?

This is my first day with MongoDB so please go easy with me :) 6 Answers 6 ...
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Best way to convert strings to symbols in hash

What's the (fastest/cleanest/straightforward) way to convert all keys in a hash from strings to symbols in Ruby? 31 Answers...
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django syncdb and an updated model

I have recently updated my model, added a BooleanField to it however when I do python manage.py syncdb , it doesn't add the new field to the database for the model. How can I fix this ? ...
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How do I use installed packages in PyCharm?

In PyCharm , I've added the Python environment /usr/bin/python . However, 12 Answers ...