Comment by Enguerran on "In how many ways can we implement the following if and else code? Forget optimisation."

Let use another code sample (like fizz buzz kata):

if ( x % 3 === 0 && x % 5 === 0) {
  return "fizz buzz";
} else if ( x % 3 === 0 ) {
  return "fizz";
} else if ( x % 5 === 0 ) {
  return "buzz";
} else {
  return x
}

See this jsbin

Note: You can use the result as a expectation in tests, and try to write some new code with Test-Driven Development.

For instance, in OOP you can use polymorphism: refactoring.com/catalog/replaceConditionalWithPol…

Let us know if you found an elegant way to answer your needs.

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