30秒学会 JavaScript 片段 – triggerEvent

Triggers a specific event on a given element, optionally passing custom data.

Use new CustomEvent() to create an event from the specified eventType and details.
Use el.dispatchEvent() to trigger the newly created event on the given element.
Omit the third argument, detail, if you do not want to pass custom data to the triggered event.

代码片段

const triggerEvent = (el, eventType, detail) =>
  el.dispatchEvent(new CustomEvent(eventType, { detail }));

使用样例

triggerEvent(document.getElementById('myId'), 'click');
triggerEvent(document.getElementById('myId'), 'click', { username: 'bob' });