Web Reference: If you type the code above in your editor, and syntax highlighting for Ruby code is used, it should highlight the code in the double quoted string, so it gives you a visual clue about the interpolation. String interpolation is an important technique in Ruby for injecting dynamic data into string literals to build customized, templated messages. In this comprehensive guide, we‘ll explore different methods for interpolation in Ruby and look at practical use cases. String interpolation lets you embed a Ruby statement in another string. It only works with double quotes: what happens when you try the same thing with single quotes?
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