Inheritance is an important concept in object-oriented programming. In the classical inheritance, methods from parent class get copied into child class.<\/p>\n\n\n\n
In JavaScript, inheritance is supported by using the prototype object. Javascript inheritance also is known as “Prototypal Inheritance” and “Behaviour Delegation”. JavaScript is not a class-based language although class<\/em> keyword is introduced in ES2015, it is just a syntactical layer<\/strong>. JavaScript still works on the prototype<\/em> chain<\/p>\n\n\n\n In JavaScript, objects have a special hidden property First of all, we can create ClassTemp easily. Because there are no explicit classes, we can define a set of behavior (Temp class so\u2026) by just creating a function like below:<\/p>\n\n\n\n This \u201cclass\u201d can be instantiated using the And to use it using our object:<\/p>\n\n\n\n So now we can put all the code in the single program.<\/p>\n\n\n\n Output Will be: Class A<\/p>\n\n\n\n Why we will use the inheritance in the javascript<\/strong>?<\/p>\n\n\n\n There are multiple reasons to use the inheritance in the javascript which are following.<\/p>\n\n\n\n[[Prototype]]<\/code> (as named in the specification), that is either null<\/code> or references another object. That object is called \u201ca prototype<\/p>\n\n\n\nvar ClassTemp = function() {\n this.classname = "class Temp";\n}<\/pre>\n\n\n\nnew<\/code> keyword:<\/p>\n\n\n\n\nvar a = new ClassTemp();\nClassTemp.prototype.print = function() {\n console.log(this.classname);\n}<\/pre>\n\n\n\na.print();<\/code><\/p>\n\n\n\nvar ClassTemp = function() {\n this.classname = "class Temp";\n}\n\nClassTemp.prototype.print = function() {\n console.log(this.classname);\n}\n\nvar a = new ClassTemp();\n\na.print();<\/pre>\n\n\n\n