자바스크립트.. => 부분..

var phantom = require('phantom');var sitepage = null;var phInstance = null;phantom.create()    .then(instance => {        phInstance = instance;        return instance.createPage();    })    .then(page => {        sitepage = page;        return page.open('https://stackoverflow.com/');    })    .then(status => {        console.log(status);        return sitepage.property('content');    })    .then(content => {        console.log(content);        sitepage.close();        phInstance.exit();    })    .catch(error => {        console.log(error);        phInstance.exit();    });