@ckeditor/ckeditor5-utils

Event Handling

The EmitterMixin class allows you to add event handling capabilities to your classes. In this example, we create a class that extends EmitterMixin, instantiate it, and then set up an event listener for 'myEvent'. When 'myEvent' is fired, the listener logs a message to the console.

const { EmitterMixin } = require('@ckeditor/ckeditor5-utils');

class MyClass extends EmitterMixin() {}

const myInstance = new MyClass();

myInstance.on('myEvent', () => {
  console.log('myEvent was fired!');
});

myInstance.fire('myEvent');

DOM Manipulation

The createElement function simplifies the process of creating and configuring DOM elements. In this example, we create a <div> element with a class and id, and then append it to the document body.

const { createElement } = require('@ckeditor/ckeditor5-utils');

const div = createElement(document, 'div', {
  class: 'my-class',
  id: 'my-id'
});

document.body.appendChild(div);

Data Structures

The Collection class provides a way to manage a collection of items. In this example, we create a new collection, add items to it, and then retrieve an item by its id.

const { Collection } = require('@ckeditor/ckeditor5-utils');

const collection = new Collection();

collection.add({ id: 1, name: 'Item 1' });
collection.add({ id: 2, name: 'Item 2' });

console.log(collection.get(1)); // { id: 1, name: 'Item 1' }