{"id":9537,"date":"2013-02-16T15:22:11","date_gmt":"2013-02-16T09:52:11","guid":{"rendered":"http:\/\/www.tothenew.com\/blog\/?p=9537"},"modified":"2016-12-19T15:30:59","modified_gmt":"2016-12-19T10:00:59","slug":"getting-started-with-js2","status":"publish","type":"post","link":"https:\/\/www.tothenew.com\/blog\/getting-started-with-js2\/","title":{"rendered":"Getting started with js2"},"content":{"rendered":"

We are assuming that you have installed node.js<\/strong> in your system, in case if you have not installed node.js<\/strong>, first install node.js<\/a><\/strong>.
\nTo install js2<\/strong> run the command given below:
\n[bash]
\nnpm install js2
\n[\/bash]<\/p>\n

\n

Let\u2019s create a simple Hello<\/strong> World<\/strong> project, but first let\u2019s create a project directory structure:
\n[bash]
\nmkdir helloWorldJs2
\ncd helloWorldJs2
\nmkdir scr lib
\n[\/bash]<\/p>\n

\n

Now create a HelloWorld<\/strong>.js2<\/strong> file in scr directory with the content given below:
\n[js]
\nclass HelloWorld {
\n function sayHelloWorld() {
\n console.log(“Hello World”);
\n }
\n}
\n[\/js]<\/p>\n

\n

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

\n

Above command will compile HellowWorld<\/strong>.js2<\/strong> file and will generate HelloWorld<\/strong>.js<\/strong> file in lib directory. Now create a js script named as hello<\/strong>.js<\/strong> in scr directory with following content:
\n[js]
\nvar HelloWorld = require(‘..\/lib\/HelloWorld’).HelloWorld;
\nvar helloWorld = new HelloWorld();
\nhelloWorld.sayHelloWorld();
\n[\/js]<\/p>\n

\n

Now run hello<\/strong>.js<\/strong> file with the command given below, And you will get Hello<\/strong> World<\/strong> printed at console.
\n[bash]
\nnode src\/hello.js
\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 node.js in your system, in case if you have not installed node.js, first install node.js. To install js2 run the command given below: [bash] npm install js2 [\/bash] Let\u2019s create a simple Hello World project, but first let\u2019s create a project directory structure: [bash] mkdir helloWorldJs2 cd helloWorldJs2 […]<\/p>\n","protected":false},"author":52,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"iawp_total_views":1},"categories":[1],"tags":[1131,1133,55,1130,1124,1132],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/posts\/9537"}],"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=9537"}],"version-history":[{"count":0,"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/posts\/9537\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/media?parent=9537"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/categories?post=9537"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/tags?post=9537"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}