<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<script>
//检测操作
//原生JavaScript判断是否为数组
function iaArr(o) {
return Object.prototype.toString.call(o) == "[object Array]";
}
var a = ["HTML","CSS","Javascript"];
document.writeln(iaArr(a)); // true
document.writeln("<br>");
var b = {
name:"tom",
age:49
};
document.writeln(iaArr(b)); // false
</script>
</head>
<body>
</body>
</html>jQueryt308，从0到1
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转载自blog.csdn.net/modern358/article/details/113809968
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