从单选群组中获取和返回文本

<input type="radio" name="group" value="option1"> Option 1
<input type="radio" name="group" value="option2"> Option 2
<input type="radio" name="group" value="option3"> Option 3

var selectedOption = document.querySelector('input[name="group"]:checked').value;

<input type="radio" name="group" value="option1"> Option 1
<input type="radio" name="group" value="option2"> Option 2
<input type="radio" name="group" value="option3"> Option 3

var returnedText = "option2"; // 后端返回的文本
var radioButtons = document.querySelectorAll('input[name="group"]');
for (var i = 0; i < radioButtons.length; i++) {
    if (radioButtons[i].value === returnedText) {
        radioButtons[i].checked = true;
        break;
    }
}