参数列表获取后未捕获到的SyntaxError：缺少）

Question

以下是代码

<script>
  $(".add_details").click(function(){
    $(".user-details").append('<div class="row input_fields_wrap"><div class="col-md-4"><div class="widget-content"><div class="widget-content-wrapper"><div class="widget-content-left col-md-3 m-0"><div class="widget-heading">Language</div></div><div class="widget-content-right col-md-9 m-0"><div class="input-group dropdown"><input class="form-control dropdown-toggle" ng-model="language"data-toggle="dropdown"id='dropdownLangaugeButton'placeholder="Add language"aria-describedby="basic-addon1"aria-haspopup="true" aria-expanded="false"><div class="input-group-append"><span class="input-group-text" id="basic-addon1"><i class="fas fa-caret-down"></i></span></div></input><div id="inputLanguage" class="dropdown-largeset dropdown-menu" aria-labelledby="dropdownLangaugeButton"><a class="dropdown-item" href="#" ng-click='languageChosen(br);' ng-repeat="br in languages | filter:language">{{br}}</a></div></div></div></div></div></div><div class="col-md-8"><div class="widget-content"><div class="widget-content-wrapper"><div class="widget-content-left col-md-4 m-0"><div class="widget-heading">Audio File</div><div class="widget-subheading">Max Size ( 20 MB | 2 Mins)</div></div><div class="widget-content-left col-md-5 m-0"><div class="input-group dropdown"><input type="file" style="line-height:24px;"onchange="angular.element(this).scope().loadDuration()"class="form-control-file" id="audio_file_input"><br/> <small class="form-text text-muted" id='audio_duration'>Duration: {{audio_file_duration || "N/A"}} seconds</small></div></div><div class="widget-content-right col-md-3 m-0"><a href="#" class="remove_btn">Remove</a></div></div></div></div><div id="videoProgress"></div></div>');
  });

  $("body").on("click",".remove-btn",function(e){
    $(this).parents('.user_data').remove();
  });
</script>