匿名函数递归(arguments.callee)和命名函数递归

匿名函数递归

1  function factorial(num) { 2              if (num <= 1) { 3                  return 1; 4             }  else { 5                  return num * arguments.callee(num - 1); 6             } 7         }

命名函数递归

1  function factorial(num) { 2              if (num <= 1) { 3                  return 1; 4             }  else { 5                  return num * factorial(num - 1); 6             } 7         } 

调用函数

1  var trueFactorial = factorial; 2         factorial =  function () { 3              return 0; 4         }; 5         console.log(trueFactorial(5)); 6         console.log(factorial(5));

转载于:https://www.cnblogs.com/qzsonline/archive/2012/03/12/2392533.html

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