programming-examples/js/Array/Write a JavaScript function to check whether an `input` is an array or not..js

is_array = function(input) {  
  if (toString.call(input) === "[object Array]")  
    return true;  
  return false;     
    };  
console.log(is_array('w3resource'));  
console.log(is_array([1, 2, 4, 0]));