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How to rollback just one step using rake db:migrate
After adding migration files in the db/migrate folder and running rake db:migrate , I want get back to the previous step, I think using VERSION=n is the right way to do that, but I don't know the correct value of n to use. Is there any command to check the current n value?
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How can I calculate the time between 2 Dates in typescript
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How to determine function name from inside a function
If I have a Bash script like:
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Rails: convert UTC DateTime to another time zone
In Ruby/Rails, how do I convert a UTC DateTime to another time zone?
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LD_LIBRARY_PATH vs LIBRARY_PATH
I'm building a simple C++ program and I want to temporarily substitute a system supplied shared library with a more recent version of it, for development and testing.
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Heroku free account limited?
Currently, I am running wordpress as my blog engine on free hosting, but I'm planning to move to use git-based blog engine(Jekyll, Toto) on Ruby platform. Then I see Heroku provides free account features, but I don't see any detail on bandwidth, disk spaces, requests?
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How to avoid merge-commit hell on GitHub/BitBucket
We're ending up with a lot of commits like this in our repo:
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Add a duration to a moment (moment.js)
Moment version: 2.0.0
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Only one expression can be specified in the select list when the subquery is not introduced with EXI
My query is as follows, and contains a subquery within it:
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How do I convert a org.w3c.dom.Document object to a String?
I want to convert a org.w3c.dom.Document object to a String. I'm using Java 6 and am open to using any (completely free) technology that is up to the task. I tried the solution from this thread -- Is there a more elegant way to convert an XML Document to a String in Java than this code? , where t...