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Unable to create/open lock file: /data/mongod.lock errno:13 Permission denied
How to I get mongo to use a mounted drive on ec2? I really do not understand. I attached a volume on ec2 formatted the drive as root and start as root and yet as root I cant access? I am running on ubuntu 12.04. No other mongo is running
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How to get all options of a select using jQuery?
How can I get all the options of a select through jQuery by passing on its ID?
17 Answers
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Ruby on Rails generates model field:type - what are the options for field:type?
I'm trying to generate a new model and forget the syntax for referencing another model's ID. I'd look it up myself, but I haven't figured out, among all my Ruby on Rails documentation links, how to find the definitive source.
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Amazon products API - Looking for basic overview and information
After using the ebay API recently, I was expecting it to be as simple to request info from Amazon, but it seems not...
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Setting PayPal return URL and making it auto return?
This is a follow up question to: PHP: Easy way to start PayPal checkout?
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python ? (conditional/ternary) operator for assignments [duplicate]
C and many other languages have a conditional (aka ternary) operator. This allows you to make very terse choices between two values based on the truth of a condition, which makes expressions, including assignments, very concise.
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Good beginners tutorial to socket.io? [closed]
I am very new to the world of webdevelopment and jumped into the bandwagon because I find the concept of HTML5 very interesting. I am fairly confident on working with canvas and would now like to move over to websockets part of it. I have come to understand socket.io is by far the framework to work ...
Force R not to use exponential notation (e.g. e+10)?
Can I force R to use regular numbers instead of using the e+10 -like notation? I have:
4 Answers
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Convert Enum to String
Which is the preferred way to convert an Enum to a String in .NET 3.5?
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How to set a default value for an existing column
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