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Editorial Team
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Asked: 2026-06-12T03:32:30+00:00

I use the examples from the CoffeeScript homepage and it doesn’t validate. The for

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I use the examples from the CoffeeScript homepage and it doesn’t validate.

The for loop one is a perfect example, if you use the coffeescript statement it doesn’t wrap the body in an if statement.

  • Expected ‘{‘ and instead saw ‘child’.
  • Possible strict violation.
  • A constructor name should start with an uppercase letter.
  • ‘insertclassnamehere’ is already defined.
  • Did you mean to return a conditional instead of an assignment?
  • Expected ‘===’ and instead saw ‘==’.
  • Unexpected ‘~’.
  • Expected ‘!==’ and instead saw ‘!=’.
  • The body of a for in should be wrapped in an if statement to filter unwanted properties from the prototype.
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1 Answer

  1. Editorial Team

    My compiled CoffeeScript won’t validate in JShint .. why?

    The short answer would be: Because the creators of the CoffeeScript compiler didn’t deem it necessary.

    It makes sense to lint code which is written and maintained by developers. It avoids human errors by making code readable.

    The code generated by a compiler on the other hand has completely different requirements. Readability is usually not a concern. It’s more important that the code is efficient and small.

    If you really want this then you need to modify the CoffeeScript compiler source.

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