When programming with JS, sometimes it is necessary to return two or more data in one method. This can be achieved by using the following methods:
1 The way to use arrays is as follows:
<html>
<head>
<title>JS函数返回多个值</title>
</head>
<body>
<input type="button" onclick="getNames()" value="test" />
<script type="text/javascript">
function getData()
{
var names=new Array("oec2003","oec2004");
return names;
}
function getNames()
{
var names=getData();
alert(getData()[0]); //返回oec2003
}
</script>
</body>
</html>
2 Encapsulate the data into Json and return it, as follows:
<html>
<head>
<title>JS函数返回多个值</title>
</head>
<body>
<input type="button" onclick="getInfo()" value="test"/>
<script type="text/javascript">
function getData()
{
var info={"name":"oec2003","age":"25"};
return info;
}
function getInfo()
{
var info=getData();
var name=info["name"];
var age=info["age"];
alert("姓名："+name+" 年龄："+age);
}
</script>
</body>
</html>
For a more detailed introduction to Json, please see here
3 This is the simplest method, look at the code below:
<html>
<head>
<title>JS函数返回多个值</title>
</head>
<body>
<input type="button" onclick="getInfo()" value="test"/>
<script type="text/javascript">
function getData()
{
return ["oec2003", 25]
}
function getInfo()
{
var info = getData();
alert("姓名：" + info[0] + "年龄：" + info[1]);
}
</script>
</body>
</html>
The above is the entire content of this article, I hope you all like it.
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