How to check if type is Boolean

Question

How can I check if a variable\'s type is of type Boolean?

I mean, there are some alternatives such as:

if(jQuery.type(new Boolean()) === jQuery.type(         


        

Answer 1

If you want your function can validate boolean objects too, the most efficient solution must be:

function isBoolean(val) {
  return val === false || val === true || val instanceof Boolean;
}