constructor Property (Array)

Specifies the function that creates an array.




The required array is the name of an array.

The constructor property is a member of the prototype of every object that has a prototype. This includes all intrinsic JavaScript objects except the Global and Math objects. The constructor property contains a reference to the function that constructs instances of that particular object.


The following example illustrates the use of the constructor property.

var x = new Array();  

if (x.constructor == Array)  
    document.write("Object is an Array.");  
    document.write("Object is not an Array.");  

// Output:  
// Object is an Array.  


Supported in the following document modes: Quirks, Internet Explorer 6 standards, Internet Explorer 7 standards, Internet Explorer 8 standards, Internet Explorer 9 standards, Internet Explorer 10 standards, Internet Explorer 11 standards. Also supported Store apps (Windows 8 and Windows Phone 8.1). See Version Information.