On Destroy Ensure The Tooltip Is Unloaded

[nadnoslen]

From a usage I had:

Uncaught TypeError: Cannot read property 'off' of null
    at bootstrap.js:1735
    at HTMLDivElement.complete (bootstrap.js:1581)
    at HTMLDivElement.fn (jquery.js:4955)
    at HTMLDivElement.handle (bootstrap.js:72)
    at HTMLDivElement.dispatch (jquery.js:5206)
    at HTMLDivElement.elemData.handle (jquery.js:5014)
    at Object.trigger (jquery.js:8201)
    at HTMLDivElement.<anonymous> (jquery.js:8269)
    at Function.each (jquery.js:362)
    at jQuery.fn.init.each (jquery.js:157)

[nadnoslen]

Should do this:

  willDestroyElement() {
    this._super(...arguments);
    const $tooltip = this.$().tooltip();
    [
      'hide.bs.tooltip',
      'hidden.bs.tooltip',
      'inserted.bs.tooltip',
      'show.bs.tooltip',
      'shown.bs.tooltip'
    ].forEach(eventName => $tooltip.off(eventName));
    this.$().tooltip('destroy');
  }