svgdom/src/dom/Event.js

Straightforward DOM implementation for SVG, HTML and XML

export class Event {
  constructor (type) {
    this.type = type
    this.cancelable = false
    this.defaultPrevented = false
    this.target = null
  }

  preventDefault () {
    if (this.cancelable) {
      this.defaultPrevented = true
    }
  }
}