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What is the difference between `after_create` and `after_save` and when to use which?

Are after_create and after_save the same as per functionality? 3 Answers 3 ...
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AngularJS browser autofill workaround by using a directive

When submitting a form in AngularJS and use the browser remember password functionality, and in a subsequent login attempt you let the browser fill in the login form with the username and password, the $scope model won't be changed based on the autofill. ...
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How can I do division with variables in a Linux shell?

When I run commands in my shell as below, it returns an expr: non-integer argument error. Can someone please explain this to me? ...
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How to detect if a variable is an array

What is the best de-facto standard cross-browser method to determine if a variable in JavaScript is an array or not? 12 Ans...
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What is a good choice of database for a small .NET application? [closed]

I'm developing a small application with C# in .NET and I want to have a small light weight database which does not use much resources. ...
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Difference between static and shared libraries?

What is the difference between static and shared libraries? 8 Answers 8 ...
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Using boolean values in C

...e 1 #define false 0 Explanation Option 1 will work only if you use C99 and it's the "standard way" to do it. Choose this if possible. Options 2, 3 and 4 will have in practice the same identical behavior. #2 and #3 don't use #defines though, which in my opinion is better. If you are undecided, ...
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Octave-Gnuplot-AquaTerm error: set terminal aqua enhanced title “Figure 1”…unknown terminal type"

I've installed Octave and gnuplot via Homebrew, and downloaded AquaTerm.dmg. When I try to plot, I get the following message: ...
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pandas: multiple conditions while indexing data frame - unexpected behavior

... As you can see, the AND operator drops every row in which at least one value equals -1. On the other hand, the OR operator requires both values to be equal to -1 to drop them. That's right. Remember that you're writing the condition in te...
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remove legend title in ggplot

... all legend titles. For more local control, the guide = guide_legend() command works. To remove the fill legend title, but to keep the color legend title, e.g. scale_fill_brewer(palette = "Dark2", guide = guide_legend(title = NULL)) + scale_color_manual(values = c("blue", "white", "red")) ...