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Heroku deployment error H10 (App crashed)
I have a RoR app working on my local computer, but when I send it to heroku, it crashes. The error log gives an error H10 & says:
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convert a list of objects from one type to another using lambda expression
I have a foreach loop reading a list of objects of one type and producing a list of objects of a different type. I was told that a lambda expression can achieve the same result.
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How do you copy and paste into Git Bash
I'm using msysgit running on Windows XP.
30 Answers
30
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Check if character is number?
I need to check whether justPrices[i].substr(commapos+2,1) .
22 Answers
22
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How to get Sinatra to auto-reload the file after each change?
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See the Sinatra FAQ,
"How do I make my Sinatra app reload on changes?"
First off, in-process code reloading in Ruby is hard and having a
solution that works for every scenario is technically impossible.
Which is why we recommend you to do out-of-process reloadin...
QString to char* conversion
I was trying to convert a QString to char* type by the following methods, but they don't seem to work.
10 Answers
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psql - save results of command to a file
I'm using psql's \dt to list all tables in a database and I need to save the results.
10 Answers
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Get current time as formatted string in Go?
What's the best way to get the current timestamp in Go and convert to string? I need both date and time in eg. YYYYMMDDhhmmss format.
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How do I enable standard copy paste for a TextView in Android?
I want to enable standard copy paste for a TextView (the same as for EditText). How can I do it?
9 Answers
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Fast permutation -> number -> permutation mapping algorithms
I have n elements. For the sake of an example, let's say, 7 elements, 1234567. I know there are 7! = 5040 permutations possible of these 7 elements.
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