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Rails Object to hash

... If you are looking for only attributes, then you can get them by: @post.attributes Note that this calls ActiveModel::AttributeSet.to_hash every time you invoke it, so if you need to access the hash multiple times you should cache it in a local variable: attribs = @post.attributes ...
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Design patterns or best practices for shell scripts [closed]

Does anyone know of any resources that talk about best practices or design patterns for shell scripts (sh, bash etc.)? 9 An...
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Why is MATLAB so fast in matrix multiplication?

...C#, Java, and using MATLAB for verification and matrix generation. When I perform matrix multiplication with MATLAB, 2048x2048 and even bigger matrices are almost instantly multiplied. ...
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Force line-buffering of stdout when piping to tee

Usually, stdout is line-buffered. In other words, as long as your printf argument ends with a newline, you can expect the line to be printed instantly. This does not appear to hold when using a pipe to redirect to tee . ...
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What is a method that can be used to increment letters?

Does anyone know of a Javascript library (e.g. underscore, jQuery, MooTools, etc.) that offers a method of incrementing a letter? ...
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Setting individual axis limits with facet_wrap and scales = “free” in ggplot2

I'm creating a facetted plot to view predicted vs. actual values side by side with a plot of predicted value vs. residuals. I'll be using shiny to help explore the results of modeling efforts using different training parameters. I train the model with 85% of the data, test on the remaining 15%, a...
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What is event bubbling and capturing?

What is the difference between event bubbling and capturing? When should one use bubbling vs capturing? 6 Answers ...
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How do I change an HTML selected option using JavaScript?

I have option menu like this: 10 Answers 10 ...
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When & why to use delegates? [duplicate]

I'm relatively new in C#, & I'm wondering when to use Delegates appropriately . they are widely used in events declaration, but when should I use them in my own code and why are they useful? why not to use something else? ...
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Copy folder structure (without files) from one location to another

... a clone of the structure of our multi-terabyte file server. I know that cp --parents can move a file and it's parent structure, but is there any way to copy the directory structure intact? ...