JavaScript: Functions should not have identical implementations

When two functions have the same implementation, either it was a mistake - something else was intended - or the duplication was intentional, but may be confusing to maintainers. In the latter case, the code should be refactored.

Noncompliant Code Example

function calculateCode() {
  doTheThing();
  doOtherThing();
  return code;
}
  
function getName() {  // Noncompliant
  doTheThing();
  doOtherThing();
  return code;
}

Compliant Solution

function calculateCode() {
  doTheThing();
  doOtherThing();
  return code;
}
  
function getName() {
  return calculateCode();
}

Exceptions

Functions with fewer than 3 lines are ignored.