{"id":144884,"date":"2025-04-18T11:21:35","date_gmt":"2025-04-18T05:51:35","guid":{"rendered":"https:\/\/data-flair.training\/blogs\/?p=144884"},"modified":"2025-04-18T11:21:35","modified_gmt":"2025-04-18T05:51:35","slug":"class-inheritance-in-javascript","status":"publish","type":"post","link":"https:\/\/data-flair.training\/blogs\/class-inheritance-in-javascript\/","title":{"rendered":"Class Inheritance in JavaScript"},"content":{"rendered":"<h3>Program 1<\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">\/\/ Ineritance \r\nclass Base\r\n{\r\n    add(a,b)\r\n    {\r\n        return(a+b)\r\n    }\r\n    sub(a,b)\r\n    {\r\n        return(a-b)\r\n    }\r\n}\r\nclass Base1 extends Base\r\n{\r\n  \r\n    multi(a,b)\r\n    {\r\n        return(a*b)\r\n    }\r\n    div(a,b)\r\n    {\r\n        return(a\/b)\r\n    }\r\n\r\n}\r\n\r\n\/\/ Main\r\nB1=new Base1()\r\nlet a=B1.add(50,10)\r\nlet b=B1.sub(50,10)\r\nlet c=B1.multi(50,10)\r\nlet d=B1.div(50,10)\r\nconsole.log(a)\r\nconsole.log(b)\r\nconsole.log(c)\r\nconsole.log(d)\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\/\/ B=new Base()\r\n\/\/ let x=B.add(50,20)\r\n\/\/ console.log(x)\r\n\/\/ let y=B.sub(50,20)\r\n\/\/ console.log(y)<\/pre>\n<h3>Program 2<\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">\/\/ Constructor in Ineritance \r\n\r\nclass Base\r\n{\r\n    constructor(a,b)\r\n    {\r\n          console.log(\"This is constructor of base \")\r\n        this.a=a\r\n        this.b=b\r\n    }\r\n    add()\r\n    {\r\n        let c=this.a+this.b\r\n        console.log(\"Addition is \" + c)\r\n    }\r\n    sub()\r\n    {\r\n        let c=this.a-this.b\r\n        console.log(\"Subtraction is \" + c)\r\n    }\r\n}\r\nclass Derived extends Base\r\n{\r\n\r\n    multi()\r\n    {\r\n        let c=this.a*this.b\r\n        console.log(\"Multiplication is \" + c)\r\n    }\r\n    div()\r\n    {\r\n        let c=this.a\/this.b\r\n        console.log(\"Division is \" + c)\r\n    }\r\n\r\n\r\n}\r\nB=new Base(50,10)\r\nB.add()\r\nB.sub()\r\nD=new Derived(100,10)\r\n\r\nD.add()\r\nD.sub()\r\nD.multi()\r\nD.div()\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\/\/ B=new Base(50,20) \/\/ argument\r\n\/\/ B.add()\r\n\/\/ B.sub()\r\n\r\n\r\n\r\n\/\/ class Base\r\n\/\/ {\r\n\/\/     constructor()\r\n\/\/     {\r\n\/\/             console.log(\"Constructor of Base class\")\r\n\/\/     }    \r\n\/\/ }\r\n\r\n\/\/ class Derived extends Base\r\n\/\/ {\r\n\/\/     constructor()\r\n\/\/     {\r\n\/\/            super()\r\n\/\/             console.log(\"Constructor of Dervied class\")\r\n\/\/     }\r\n\/\/ }\r\n\r\n\/\/ class Derived1 extends Derived\r\n\/\/ {\r\n\/\/     constructor()\r\n\/\/     {\r\n\/\/            super()\r\n\/\/             console.log(\"Constructor of Dervied 1 class\")\r\n\/\/     }\r\n\/\/ }\r\n\r\n\/\/ \/\/ Main\r\n\/\/ D=new Derived1()<\/pre>\n<h3>Program 3<\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">\/\/ class Base\r\n\/\/ {\r\n\/\/     show()\r\n\/\/     {\r\n\/\/         console.log(\"This is show method of Base Class\")\r\n\/\/     }\r\n\/\/ }\r\n\/\/ class Derived extends Base\r\n\/\/ {\r\n\/\/     show()\r\n\/\/     {\r\n\/\/         super.show()\r\n\/\/         console.log(\"This is show method of Derived Class\")\r\n\/\/     }\r\n\/\/ }\r\n\r\n\/\/ D=new Derived()\r\n\/\/ D.show()\r\n\r\n\r\n\/\/ class Base\r\n\/\/ {\r\n\/\/     static  display()\r\n\/\/     {\r\n\/\/     console.log(\"This is a static method base class\")\r\n\/\/     }\r\n\/\/ }\r\n\/\/ class Derived extends Base\r\n\/\/ {\r\n\/\/     static  display()\r\n\/\/     {  \r\n        \r\n\/\/         super.display()\r\n\/\/        console.log(\"This is a static method Dervied class\")\r\n\/\/     }\r\n\/\/ }\r\n\r\n\/\/ \/\/ Main\r\n\/\/ Derived.display()<\/pre>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Program 1 \/\/ Ineritance class Base { add(a,b) { return(a+b) } sub(a,b) { return(a-b) } } class Base1 extends Base { multi(a,b) { return(a*b) } div(a,b) { return(a\/b) } } \/\/ Main B1=new Base1()&#46;&#46;&#46;<\/p>\n","protected":false},"author":581,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18979],"tags":[32132,34040,7758,32131,34039,31621,31622,32134,34041,18980],"class_list":["post-144884","post","type-post","status-publish","format-standard","hentry","category-javascript","tag-class-inheritance-in-javascript","tag-inheritance-in-javascript","tag-javascript","tag-javascript-class-inheritance","tag-javascript-inheritance","tag-javascript-practical","tag-javascript-program","tag-javascript-program-on-class-inheritance","tag-javascript-program-on-inheritance","tag-javascript-tutorial"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - 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