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HTMLEvent customEvent html Trigger Custom 
ie9+

//Trigger Custom
if (window.CustomEvent) {
  var event = new CustomEvent('my-event', {detail: {some: 'data'}});
} else {
  var event = document.createEvent('CustomEvent');
  event.initCustomEvent('my-event', true, true, {some: 'data'});
}

//触发事件
el.dispatchEvent(event);


//Trigger Native
// For a full list of event types: https://developer.mozilla.org/en-US/docs/Web/API/document.createEvent
event = document.createEvent('HTMLEvents');
event.initEvent('change', true, false);
el.dispatchEvent(event);

//getType
Object.prototype.toString.call(obj).replace(/^\[object (.+)\]$/, "$1").toLowerCase();
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