javascript字符串截取

var names1=["aa","bb","hh"];
var names2=["cc","kk","jj"];


var nam=names1.splice(1,2);

console.log(nam)

//后台运行结果    ["bb", "hh"]

splice()方法，第一个参数是截取的起始索引，第二个参数是截取的长度