JSFiddle - React, Tailwind, and code Playground
JavaScript
var Animal = function(legNo){
this.leg = legNo;
};
Animal.prototype.canGraze = function(){
if(this.leg===4){
return true;
}
return false;
};
var dog = new Animal(4);
var crow = new Animal(2);
console.log(dog.canGraze());
console.log(crow.canGraze());