如何区分多个textField返回？

<input type="text" id="textField1">
<input type="text" id="textField2">

var textField1 = document.getElementById("textField1");
var textField2 = document.getElementById("textField2");

<input type="text" class="textField">
<input type="text" class="textField">

var textFields = document.getElementsByClassName("textField");

<input type="text" name="textField1">
<input type="text" name="textField2">

var textFields = document.getElementsByName("textField1");

<div id="parent1">
  <input type="text">
</div>
<div id="parent2">
  <input type="text">
</div>

var parent1TextField = document.getElementById("parent1").querySelector("input[type='text']");
var parent2TextField = document.getElementById("parent2").querySelector("input[type='text']");