问我可以使用jQuery检查整个页面是否包含文本吗？

EN

$("html:contains('Badges')")

$("body:contains('Badges')")

var textToFind = 'Badges';

$(function(){
  var allTextNodes = $("*").contents().filter(function () {
    return this.nodeType === Node.TEXT_NODE;
  });
  
  var matchingNodes = allTextNodes.filter(function(){return this.textContent.indexOf(textToFind) > -1;}).parent();

  // matchingNodes is a list of all nodes (tags) that contain the searched text
});

$(function(){
  $.fn.nodesWithText = function(textToFind){
    var allTextNodes = $("*", this)
                        .addBack()
                        .contents()
                        .filter(function () {
                          return this.nodeType === Node.TEXT_NODE;
                        }),
        matchingNodes = allTextNodes
                          .filter(function(){
                            return this
                              .textContent
                              .indexOf(textToFind) > -1;
                          });
    return matchingNodes.parent();
  };
});