If you’ve ever worked with JavaScript, especially in pre-SPA/pre-frameworks era with just jQuery, you probably had a chance to see an “exotic” maths in action that looks similar to this:

"3" + 4 // => "34"

That kind of behavior usually comes as a big surprise and due to that fact, JavaScript has gotten some bad reputation (even though there is a rationale behind it). If we tried that in Ruby, we would get an obvious TypeError:

"3" + 4 # => TypeError (no implicit conversion of Integer into String)

Would it be possible though to obtain the same result somehow in Ruby?

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