slice() substr() substring() indexOf() ?
看下我的注释问题：
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Array对象 </title>
<script type="text/javascript">
var myarr1= ["我","爱","你"];
var myarr2="我爱你"
document.write(myarr1.slice(myarr1.indexOf("爱")).reverse()+"<br/>");
document.write(myarr1.indexOf("爱")+"<br/>");
document.write(myarr2.substring("我",3)+"<br/>");
document.write(myarr2.substr("我",3)+"<br/>");
document.write(myarr2.slice(-1));
document.write(myarr1.substring("我",3)+"<br/>");
document.write(myarr2.substr("我",3)+"<br/>");
//.substring() .substr()是针对于字符串；而.indexOf()为什么在字符串和数组中都能用到？ .slice()为什么也可用于字符串呢？
</script>
</head>
<body>
</body>
</html>
