// Automatically binds ES6 class methods
// From within constructor() call classAutoBind(this)

window.classAutoBind = function(context) {
  for (let method of Object.getOwnPropertyNames(Object.getPrototypeOf(context))) {
    if (method !== 'constructor') {
      context[method] = context[method].bind(context)
    }
  }
}

// Example:
class Tacos {
  constructor() {
    this.type = 'Tacos'
    classAutoBind(this)
  }
  getType() {
    return this.type
  }
}

var tacos = new Tacos()
console.log(tacos.getType())