How to set default boolean values in JavaScript?

Question

Setting default optional values in JavaScript is usually done via the || character

var Car = function(color) {
  this.color = color || \'blue\';
};
         


        

Answer 1

Without much confusion you can do like this to get a default true.

this.hasWheels=typeof hasWheels === 'boolean'?hasWheels:true

To get a default false

this.hasWheels=typeof hasWheels === 'boolean'?false