如何让复选框在选中时返回值为True？

<input type="checkbox" id="myCheckbox" onchange="checkboxChanged()">

<script>
function checkboxChanged() {
  var checkbox = document.getElementById("myCheckbox");
  var isChecked = checkbox.checked;
  console.log(isChecked); // 返回True或False
}
</script>

<input type="checkbox" id="myCheckbox">

<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
<script>
$("#myCheckbox").change(function() {
  var isChecked = $(this).is(":checked");
  console.log(isChecked); // 返回True或False
});
</script>

<div id="app">
  <input type="checkbox" v-model="isChecked">
</div>

<script src="https://cdn.jsdelivr.net/npm/vue@2.6.14/dist/vue.min.js"></script>
<script>
new Vue({
  el: "#app",
  data: {
    isChecked: false
  },
  watch: {
    isChecked: function(newValue) {
      console.log(newValue); // 返回True或False
    }
  }
});
</script>