清空元素html("") innerHTML="" 与 empty()的区别和应用(推荐)

// Init the element's event structure 
 var events = jQuery.data(elem, "events") || jQuery.data(elem, "events", {}), 
  handle = jQuery.data(elem, "handle") || jQuery.data(elem, "handle", function(){ 
  // Handle the second event of a trigger and when 
  // an event is called after a page has unloaded 
  return typeof jQuery !== "undefined" && !jQuery.event.triggered "htmlcode">

remove: function( selector ) { 
 if ( !selector || jQuery.filter( selector, [ this ] ).length ) { 
  // Prevent memory leaks 
  jQuery( "*", this ).add([this]).each(function(){ 
  jQuery.event.remove(this); 
  jQuery.removeData(this); 
  }); 
  if (this.parentNode) 
  this.parentNode.removeChild( this ); 
 } 
 }, 
 empty: function() { 
 // Remove element nodes and prevent memory leaks 
 jQuery(this).children().remove(); 
 
 // Remove any remaining nodes 
 while ( this.firstChild ) 
  this.removeChild( this.firstChild ); 
 }


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