Recursive thinking to obtain all tag elements on the page (remove duplication)

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Release: 2023-03-22 18:04:01
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This article shares with you the code that uses recursive thinking to obtain all tag elements on the page. Friends in need can refer to this code

var tag = [];
var search = function($element, tag){
  var localName = $element[0].localName;
  if(!tag.includes(localName)){
    tag.push($element[0].localName);
  }
  var children = $element.children();
  if(children.length > 0) {
    children.each(function(e){
      search($(this), tag);
    });
  }
  return tag;
};

tag = search($('html'), tag);
console.log(tag);
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Use recursive thinking to traverse all elements and finally return an array
Recursive thinking to obtain all tag elements on the page (remove duplication)

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