JavaScript数组join()方法详解与使用示例

语法与参数说明

array.join(separator);

代码示例与输出结果

<html>
<head>
<title>JavaScript Array join Method</title>
</head>
<body>
<script type="text/javascript">

var arr = new Array("First","Second","Third");

var str = arr.join();
document.write("str : " + str ); 

var str = arr.join(", ");
document.write("<br />str : " + str ); 

var str = arr.join(" + ");
document.write("<br />str : " + str ); 
</script>
</body>
</html>

str : First,Second,Third
str : First, Second, Third
str : First + Second + Third