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Category: Ruby

Ruby: When to Use Symbol or String?

Symbols are just a way to name something. Typically it’s used to name attributes in a class or for options (colors, types of cuisines, type of shoe, etc). In essence, a constant string.   Use Strings instead of a Symbol...

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Ruby Methods Basics

Methods are great for DRYing up your code and organizing logic in a single place. They act a little bit like a black box. Here are some tidbits that might not be so obvious with Ruby methods. All methods have to be called on an...

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Ruby Variables Basics

Variables in Ruby are basically pointers to an object in memory (heap). a = "bacon" puts "a's object id: #{a.object_id}" # b points to the same Object as a b = a puts "b's object id: #{b.object_id}" # a's object id:...

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Ruby Blocks Tutorial

Sometimes we need to make our code more expressive and tidy but at the same time flexible and easier to use. Learning how to use Ruby blocks appropriately will level you up as a Ruby programmer. Sometimes we like to...

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How to Write Your Own Iterators in Ruby

Generally if your class has an array/hash, sometimes you don’t want to expose the implementation of those collections outside of the object. Creating your own iterator will make your object easier to use. class Headphone...

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rails console hangs

“rails c” hangs with no error messages and no response. solution: stop spring using the following command “spring stop” or “bin/spring stop” spring will automatically start back up when you...

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