字符串,数组常见例题

1：在一串字符串中找出最长的字符

var st="The quick brown fox jumped bcaked jumped abscefg over the lazy dog 15625765675276";
     function zifuchuanmax(str){
         var arr=str.split(" ");//将字符串转化为数组
         var max=arr[0];
         for(var i=1;i<arr.length;i++){
             if(max.length<arr[i].length){
                 max=arr[i];
             }
         }
         return max;
     }
     console.log(zifuchuanmax(st));//15625765675276var st="The quick brown fox jump