JavaScript isArray()Method

Array 对象参考手册JavaScript Array Object

Examples

Determine whether the object is an array:

function myFunction() { var fruits = ["Banana", "Orange", "Apple", "Mango"]; var x = document.getElementById("demo"); x.innerHTML = Array.isArray(fruits); }

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Definition and Usage

The isArray() method is used to determine whether an object is an array.

Returns true if the object is an array, otherwise returns false.


Browser Support

The numbers in the table indicate the first browser version that supports the method.

Method
isArray() 5 9.0 4 5 10.5

Syntax

Array.isArray(obj)

Parameters

Parameter Description
obj Required. The object to be judged.

Technical Details

Return value: Boolean value. Returns true if the object is an array, otherwise returns false.
JavaScript Version: ECMAScript 5


Array 对象参考手册JavaScript Array Object

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