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How to sort a list in Scala by two fields?
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217
rows.sortBy(r => (r.lastName, r.firstName))
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Heroku free account limited?
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Heroku provides, for free, a 5MB database
Heroku provides, for free, 1 dyno. A dyno is an instance of your application running and responding to requests. If each instance of your application can serve each request in 100ms, then you get 600 requests/minute with the free account.
Your applica...
Possible Loss of Fraction
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169
When you divide two int's into a floating point value the fraction portion is lost. If you cas...
Timeout command on Mac OS X?
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130
You can use
brew install coreutils
And then whenever you need timeout, use
gtimeout
..i...
How to suppress scientific notation when printing float values?
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12 Answers
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Regular expression to return text between parenthesis
...r problem is really just this simple, you don't need regex:
s[s.find("(")+1:s.find(")")]
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How do I update if exists, insert if not (AKA “upsert” or “merge”) in MySQL?
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191
Use INSERT ... ON DUPLICATE KEY UPDATE. For example:
INSERT INTO `usage`
(`thing_id`, `times_...
Maintain the aspect ratio of a div with CSS
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Just create a wrapper <div> with a percentage value for padding-bottom, like this:
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What is “thread local storage” in Python, and why do I need it?
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edited Jan 28 at 21:34
Willwsharp
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answered Se...
git cherry-pick says “…38c74d is a merge but no -m option was given”
...uld be calculated, by using the -m option. For example, git cherry-pick -m 1 fd9f578 to use parent 1 as the base.
I can't say for sure for your particular situation, but using git merge instead of git cherry-pick is generally advisable. When you cherry-pick a merge commit, it collapses all the chan...