How to check if an argument is an object (and not an array) in JavaScript

Question

After testing out instasnceof I found that it will return true if the argument is an array or an object literal.

function test(options){
  if(option         


        

Answer 1

If you're trying to forbid arrays, you can just do this:

var isObject = options instanceof Object;
var isArray = options instanceof Array;
if(isObject && !isArray)
{
    alert('yes');
}