<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>每天一個JavaScript實例-遞歸實現反轉數組字符串</title>
<script>
var func = function(x,indx,str){
return indx == 0 ? str : func(x,--indx,(str +=" " + x[indx]));;
}
var arr = new Array("apple","banna","orange","apple2","apple3");
var arr1 = arr.slice(0)
var arr3 = func(arr1,arr1.length,"");
var arr2 = arr.slice(0).reverse();
console.log(arr2);
console.log(arr);
console.log(arr3);
</script>
</head>
<body>
<div id = "date">
</div>
</body>
</html>