JavaScript Array isArray() method
- Rejea hadi ukweli wa awali indexOf()
- Pya zaidi join()
- Rejea kwa ukweli Kitabu cha Mafunzo ya JavaScript Array
Definition and usage
isArray() Method to determine if the object is an array.
If the object is an array, this function returns true, otherwise it returns 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. If the object is an array, it returns true, otherwise it returns 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 wa Februari | 2010 wa Septemba | 2015 wa Julai | 2010 wa Julai | 2010 wa Juni | Mwezi wa Machi 2010 |
Vipindi vya habari vya vingine
Makala:Array ya JavaScript
Makala:Array ya JavaScript ya Const
Makala:Method za Array ya JavaScript
- Rejea hadi ukweli wa awali indexOf()
- Pya zaidi join()
- Rejea kwa ukweli Kitabu cha Mafunzo ya JavaScript Array
