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How to empty a Heroku database
... app} substitute the name of your app. For example, if your app is called my_great_app then you use:
heroku pg:reset DATABASE_URL --confirm my_great_app
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Undo git update-index --skip-worktree
...t need to remember it. I use alias hidden="git ls-files -v | grep '^S'" in my .bash_profile. It works great!
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How to git-cherry-pick only changes to certain files?
... In essence it is the same as git checkout SHA -- file1.txt file2.txt. See my earlier comment for why that is different to what the git show version.
– Michael Anderson
Dec 14 '15 at 23:35
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Fastest way to serialize and deserialize .NET objects
.../advertisement or is there a trade off? thanks
– Jeremy Thompson
Apr 15 '15 at 14:22
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What is Turing Complete?
...gh with no guarantees regarding runtime or memory).
So, if somebody says "my new thing is Turing Complete" that means in principle (although often not in practice) it could be used to solve any computation problem.
Sometime's it's a joke... a guy wrote a Turing Machine simulator in vi, so it's pos...
How do I get a TextBox to only accept numeric input in WPF?
...ex in IsTextAllowed method to see if I should allow what they've typed. In my case I only want to allow numbers, dots and dashes.
private static readonly Regex _regex = new Regex("[^0-9.-]+"); //regex that matches disallowed text
private static bool IsTextAllowed(string text)
{
return !_regex.I...
Django datetime issues (default=datetime.now())
...swered May 5 '10 at 8:52
Carson MyersCarson Myers
32.8k3333 gold badges113113 silver badges162162 bronze badges
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Loading basic HTML in Node.js
...ggestion too. It's pretty sweet, and I'm pretty sure I'll be using it for my next project. My goal was to kinda figure out how it's done under the hood before I let the framework do the heavy lifting for me.
– David Granado
Jan 18 '11 at 22:39
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SQL select only rows with max value on a column [duplicate]
...max value in a column per some group identifier. I heard that a lot during my career. Actually, it was one the questions I answered in my current job's technical interview.
It is, actually, so common that StackOverflow community has created a single tag just to deal with questions like that: great...
Why does calling a method in my derived class call the base class method?
Consider this code:
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