Array.length vs Array.prototype.length

Question

I found that both the Array Object and Array.prototype have the length property. I am confused on using the Array.length

Answer 1

Array.length provides the number of declared parameters in Array function definition. Since Array function definition has only one size parameter, hence it will return 1 irrespective of your array content.

Array.prototype.length provides the number of elements in array data. It is dependent on the array content.

var arr=new Array();
console.log(Array.length);//returns 1
console.log(arr.length);//returns 0 as array has 0 elements