jQuery isArray() function is used to determine whether the argument is an array.
Syntax
jQuery.isArray( obj )
obj - Object to test whether or not it is an array.
Example
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.isArray demo</title>
<script src="https://code.jquery.com/jquery-3.4.1.js"></script>
</head>
<body>
Is [] an Array? <b id="b1"></b> <br> fruits an Array? <b id="b2"></b><br> obj an Array <b id="b3"></b>
<script>
$("#b1").append("" + $.isArray([]));
var fruits = ["Banana", "Orange", "Apple", "Mango"];
$("#b2").append("" + $.isArray(fruits));
var obj = {};
$("#b3").append("" + $.isArray(obj));
</script>
</body>
</html>
Output:
Is [] an Array? true
fruits an Array? true
obj an Array false
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