VictorMedeiros · August 2, 2016 18:00
diff --git a/quando-nao-usar-arrow-function10.js b/quando-nao-usar-arrow-function10.js
 function multiply(a, b) {  
  if (b === undefined) {
    return function(b) {
      return a * b;
    }
  }
  return a * b;
 }
 let double = multiply(2);  
 double(3);      // => 6  
 multiply(2, 3); // => 6
	function multiply(a, b) {
	if (b === undefined) {
	return function(b) {
	return a * b;
	}
	}
	return a * b;
	}
	let double = multiply(2);
	double(3); // => 6
	multiply(2, 3); // => 6