Convert Yeoman generators to ES module

generators/block/index.js

@@ -1,10 +1,15 @@
-const path = require('path');
-const Generator = require('yeoman-generator');
-const mkdirp = require('mkdirp');
+import path from 'path';
+import Generator from "yeoman-generator";
+import mkdirp from "mkdirp";
+import {fileURLToPath} from 'url';
+import {capitalize} from "../../helpers.js";
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
 
 const baseDir = path.join(__dirname, '../../');
 
-module.exports = class extends Generator {
+export default class extends Generator {
   async prompting() {
     this.data = await this.prompt([
       {
@@ -143,20 +148,4 @@ module.exports = class extends Generator {
       data
     );
   }
-};
-
-// TODO: Same function is located in "/helpers.js" file. Find a way to remove cjs files.
-export function capitalize(str) {
-  if (typeof str !== 'string') {
-    return '';
-  }
-
-  return str
-    .toLowerCase()
-    .split(/[ -_]/g)
-    .filter((word) => !!word)
-    .map((word) => {
-      return word.charAt(0).toUpperCase() + word.slice(1);
-    })
-    .join(' ');
 }