{"id":9565,"date":"2013-02-18T07:27:42","date_gmt":"2013-02-18T01:57:42","guid":{"rendered":"http:\/\/www.tothenew.com\/blog\/?p=9565"},"modified":"2016-12-19T15:31:01","modified_gmt":"2016-12-19T10:01:01","slug":"how-to-implement-inheritance-in-js2","status":"publish","type":"post","link":"https:\/\/www.tothenew.com\/blog\/how-to-implement-inheritance-in-js2\/","title":{"rendered":"How to implement Inheritance in js2"},"content":{"rendered":"

We are assuming that you have installed js2<\/strong> in your system, in case if you have not installed js2<\/strong>, first install js2<\/a><\/strong>.<\/p>\n

\n

First of all create a InheritanceTest.js2 file in scr directory with the content given below:
\n[js]
\nclass Person { \/\/ Parent class
\n var firstName;
\n var lastName;<\/p>\n

function initialize(firstName, lastName) { \/\/ Constructor
\n this.firstName = firstName;
\n this.lastName = lastName;
\n }<\/p>\n

function toString() {
\n return this.firstName + ‘ ‘ + this.lastName;
\n }
\n}<\/p>\n

class Employee extends Person { \/\/ Child class
\n var companyName;<\/p>\n

function initialize(firstName, lastName, companyName) { \/\/ Constructor
\n this.$super(firstName, lastName);
\n this.companyName = companyName;
\n }<\/p>\n

function toString() {
\n return this.$super() + ‘, ‘ + this.companyName;
\n }
\n}
\n[\/js]<\/p>\n

\n

To compile js2<\/strong> file into js<\/strong> file in lib directory run the command given below:
\n[bash]
\njs2-node compile -f=node .\/src .\/lib
\n[\/bash]<\/p>\n

\n

Now create a js<\/strong> script named as inheritance<\/strong>.js<\/strong> in scr directory with following content:
\n[js]
\nvar Person = require(‘..\/lib\/InheritanceTest’).Person;
\nvar Employee = require(‘..\/lib\/InheritanceTest’).Employee;<\/p>\n

var person = new Person(“Amit”, “Thakkar”);
\nconsole.log(person.toString())
\nvar employee = new Employee(“Amit”, “Kumar”, “Intelligrape”);
\nconsole.log(employee.toString())
\n[\/js]<\/p>\n

\n

Now run inheritance<\/strong>.js<\/strong> file with the command given below:
\n[bash]
\nnode src\/hello.js
\n\/\/ Output
\nAmit Thakkar
\nAmit Kumar, Intelligrape
\n[\/bash]<\/p>\n

Amit Kumar
\namit.kumar@intelligrape.com<\/a>
\nin.linkedin.com\/in\/amitkumar0110
\ntwitter.com\/amit_kumar0110
\nMore Blogs by Me<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

We are assuming that you have installed js2 in your system, in case if you have not installed js2, first install js2. First of all create a InheritanceTest.js2 file in scr directory with the content given below: [js] class Person { \/\/ Parent class var firstName; var lastName; function initialize(firstName, lastName) { \/\/ Constructor this.firstName […]<\/p>\n","protected":false},"author":52,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"iawp_total_views":0},"categories":[1],"tags":[1134,55,1130,1124],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/posts\/9565"}],"collection":[{"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/users\/52"}],"replies":[{"embeddable":true,"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/comments?post=9565"}],"version-history":[{"count":0,"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/posts\/9565\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/media?parent=9565"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/categories?post=9565"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/tags?post=9565"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}