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How do I check the difference, in seconds, between two dates?
There has to be an easier way to do this. I have objects that want to be refreshed every so often, so I want to record when they were created, check against the current timestamp, and refresh as necessary.
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How to add to an existing hash in Ruby
In regards to adding an key => value pair to an existing populated hash in Ruby, I'm in the process of working through Apress' Beginning Ruby and have just finished the hashes chapter.
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Error “library not found for” after putting application in AdMob
I am getting an error after I put my application in an AdMob. The app was working until today. The error is the following:
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Iterate all files in a directory using a 'for' loop
How can I iterate over each file in a directory using a for loop?
17 Answers
17
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Why do I get AttributeError: 'NoneType' object has no attribute 'something'?
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What's the difference between a Future and a Promise?
What's the difference between Future and Promise ?
They both act like a placeholder for future results, but where is the main difference?
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Removing cordova plugins from the project
Somehow in my app many of the cordova plugins are installed and because of that it requires access to almost everything - from my contacts to current location ( even though this app doesn't need this ).
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Is null reference possible?
Is this piece of code valid (and defined behavior)?
4 Answers
4
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How can I specify the base for Math.log() in JavaScript?
I need a log function for JavaScript, but it needs to be base 10. I can't see any listing for this, so I'm assuming it's not possible. Are there any math wizards out there who know a solution for this?
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