functions defined in scope before calling is not defined

[espruino-discuss3]

Posted at 2022-03-19 by bmatusiak

most JS interpreters scan ahead for new function definitions within its current scope

(function(){
  
  console.log("level 1");
  
  return lvl2();
  
  function lvl2(){
    console.log("level 2");
  }
  
})();

Espruino's JS does not

[gfwilliams]

Posted at 2022-03-21 by @gfwilliams

Yes, I'm aware of that. It's a side-effect of the way Espruino executes code as it parses.

Espruino does have the ability to work in a two-pass mode where this code would then work, but doing two passes really hurts execution speed so the decision was made not to turn the functionality on.