javascript实现的一个带下拉框功能的文本框(2)

<script>
  var listName = document.getElementById('list-name-for-select');
  var listSelect = document.getElementById('list-select').onchange = function(e){
   console.log(this)
   if(this.value){
    listName.value = this.value + ' | ' + this.options[this.selectedIndex].text;
   }else{
    listName.value = ''
   }
  };
 </script>
</body>
</html>

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