JavaScript Array isArray() method
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Definition and usage
isArray() Method to determine if an object is an array.
If the object is an array, this function returns true, otherwise false.
Example
Check if the object is an array:
function myFunction() {
var fruits = ["Banana", "Orange", "Apple", "Mango"];
var x = document.getElementById("demo");
x.innerHTML = Array.isArray(fruits);
}
Syntax
Array.isArray(obj)
Parameter value
| Parameter | Description |
|---|---|
| obj | Required. The object to be tested. |
Technical details
| Return value: | Boolean value. Returns true if the object is an array, otherwise false. |
|---|---|
| JavaScript version: | ECMAScript 5 |
Browser support
All browsers fully support isArray() Method:
| Chrome | IE | Edge | Firefox | Safari | Opera |
|---|---|---|---|---|---|
| Chrome 5 | IE 9 | Edge 12 | Firefox 4 | Safari 5 | Opera 10.5 |
| 2010 February | 2010 September | 2015 July | 2010 July | 2010 June | March 2010 |
Related pages
Tutorial:JavaScript array
Tutorial:JavaScript array Const
Tutorial:JavaScript array methods
Tutorial:JavaScript sorting array
Tutorial:JavaScript array iteration
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