javascript - Odoo POS javascript 变化

Question

我想在 <select> 上执行 on Change 事件字段。根据所选值，我想过滤另一个 <select> field 。现在想一下如何实现这一目标，请提供帮助。

Answer 1

不确定你到底想要什么

检查代码片段，这是我从你的问题陈述中得到的理解

window.onload = function() {
  var choose_one = document.getElementById("select_one");
  choose_one.addEventListener("change", ChangedOption);
}

function ChangedOption() {
  var choose_one = document.getElementById("select_one");
  var choose_two = document.getElementById("select_two");
  var selectedIndex = choose_one.selectedIndex;
  if (selectedIndex > -1) {
    var selectedValue = choose_one.options[choose_one.selectedIndex].value;
    var selectTwoOptions = choose_two.options;

    for (var i = 0; i < choose_two.options.length; i++)
      if (selectTwoOptions[i].value == selectedValue) {
        selectTwoOptions[i].selected = true;
      }
    
  }
}

<select id="select_one">

  <option value="1">one</option>

  <option value="2">two</option>
  <option value="3">three</option>
</select>
<select id="select_two">
  <option value="4">four</option>
  <option value="3">three</option>
  <option value="5">five</option>
</select>

希望这有帮助