js递归调用报错：Maximum call stack size exceeded

[magic_nian]

上代码

<script type="text/javascript">
var t1 = [];
var t2 = [1,2,3,4,5,6];

!function iterator(index){
   if(index==t2.length){
     console.log(t1[0])
	  return;
   }
   t1.push(t2[index])
   iterator(index++)
}(0)
</script>

本人新手，求指导

[罢懂]

var t1 = []; var t2 = [1,2,3,4,5,6]; !function iterator(index){ if(index==t2.length){ console.log(t1[0]) return; } t1.push(t2[index]) iterator(++index) }(0)

[罢懂]

var t1 = [];
var t2 = [1,2,3,4,5,6];
 
!function iterator(index){
   if(index==t2.length){
     console.log(t1[0])
      return;
   }
   t1.push(t2[index])
   iterator(index+1)
}(0)

[天际的海浪]

++放变量前面