convert default generator to an ES2015-style class

Author: BrianSipple

subgenerator/templates/index.js

@@ -1,36 +1,36 @@
 'use strict';
-var Generator = require('yeoman-generator');
-var chalk = require('chalk');
-var yosay = require('yosay');
+const Generator = require('yeoman-generator');
+const chalk = require('chalk');
+const yosay = require('yosay');
 
-module.exports = Generator.extend({
-  prompting: function () {
+module.exports = class extends Generator {
+  prompting() {
     // Have Yeoman greet the user.
     this.log(yosay(
       'Welcome to the <%- superb %> ' + chalk.red('<%= generatorName %>') + ' generator!'
     ));
 
-    var prompts = [{
+    const prompts = [{
       type: 'confirm',
       name: 'someAnswer',
       message: 'Would you like to enable this option?',
       default: true
     }];
 
-    return this.prompt(prompts).then(function (props) {
+    return this.prompt(prompts).then(props => {
       // To access props later use this.props.someAnswer;
       this.props = props;
-    }.bind(this));
-  },
+    });
+  }
 
-  writing: function () {
+  writing() {
     this.fs.copy(
       this.templatePath('dummyfile.txt'),
       this.destinationPath('dummyfile.txt')
     );
-  },
+  }
 
-  install: function () {
+  install() {
     this.installDependencies();
   }
-});
+};