How jquery determines whether it is an array element: You can use the [$.isArray()] function to determine whether the specified parameter is an array. The syntax is [$. isArray(object)].
The operating environment of this tutorial: windows7 system, jquery3.2.1 version. This method is suitable for all brands of computers.
How jquery determines whether it is an array element:
You can use the $.isArray() function in jquery to determine whether it is an array element.
$.isArray()The function is used to determine whether the specified parameter is an array.
Grammar
$.isArray( object )
Example:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>HTML中文网</title>
<script src="https://cdn.staticfile.org/jquery/1.10.2/jquery.min.js"></script>
</head>
<body>
[] 是一个数组吗？<b></b>
<script>
$(function () {
$( "b" ).append( "" + $.isArray([]) );
})
</script>
</body>
</html>Run result:
[] 是一个数组吗？true
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