单页上多个表单的客户端表单验证

Question

我在一个页面上显示了多个动态表单。请参阅下面的代码片段以获取示例。问题是我想确保使用 JavaScript.

在每个表单中选择一个值

<div class="form-check form-check-inline float-right" data-application-no="1">
    <input type="radio" class="form-check-input" id="shortlist" name="decisionOptions1" value="shortlist">
    <label for="shortlist" class="form-check-label mr-3">Shortlist</label>
    <input type="radio" class="form-check-input" id="reject" name="decisionOptions1" value="reject">
    <label for="reject" class="form-check-label">Reject</label>    
</div>

<div class="form-check form-check-inline float-right" data-application-no="2">
    <input type="radio" class="form-check-input" id="shortlist" name="decisionOptions2" value="shortlist">
    <label for="shortlist" class="form-check-label mr-3">Shortlist</label>
    <input type="radio" class="form-check-input" id="reject" name="decisionOptions2" value="reject">
    <label for="reject" class="form-check-label">Reject</label>    
</div>

<div class="form-check form-check-inline float-right" data-application-no="3">
    <input type="radio" class="form-check-input" id="shortlist" name="decisionOptions3" value="shortlist">
    <label for="shortlist" class="form-check-label mr-3">Shortlist</label>
    <input type="radio" class="form-check-input" id="reject" name="decisionOptions3" value="reject">
    <label for="reject" class="form-check-label">Reject</label>    
</div>

我真的很纠结如何去做这件事。

现在，我正在处理这个：

function submitDecision(){

    const decisionForm = document.querySelectorAll('[name^=decisionOptions]');
    const shortlistSelector = document.querySelectorAll('#shortlist');
    const rejectSelector = document.querySelectorAll('#reject');


    for (const selector of decisionForm){
        console.log(`${selector.name}: ${selector.value} , ${selector.checked}`);
        if ((selector.value == "shortlist" && selector.checked == false) && (selector.value == "reject" && selector.checked == false)){
       console.log("we have a problem!")
        }
     }
}

上面的代码显然不起作用，因为在那个 if 语句中我指的是同一个选择器。关于我如何解决这个问题的任何建议。我想确保为每个申请（每个表格）选择入围或拒绝选项。如果没有做出选择但用户尝试提交表单，我想显示一个错误。

Answer 1

万一有人感兴趣，我就是这样解决的：

function submitDecision(){

    const decisionForm = document.querySelectorAll('[name^=decisionOptions]');


    for (const selector of decisionForm){
        
        const rejectSelector = selector.parentNode.lastElementChild.previousElementSibling;
        const formDiv = selector.parentNode
        const brTag = formDiv.nextElementSibling;
        const errorMsg = document.createElement('p');
        errorMsg.className = 'error-msg float-right';
        errorMsg.innerHTML = 'Please make a selection before submitting';
        errorMsg.style.color = 'red';
        if ((selector.value == "shortlist" && selector.checked == false) && (rejectSelector.checked == false)){
            console.log(`no options selected for application-no${formDiv.dataset.applicationNo}`);
            formDiv.parentNode.insertBefore(errorMsg, brTag.nextElementSibling);
            selector.addEventListener('change', () => {
                if (selector.checked){
                    console.log("remove error message");
                    try {
                        errorMsg.remove()
                    } catch(err){
                        console.log(err)
                    }
                }
            })
            rejectSelector.addEventListener('change', () => {
                if (rejectSelector.checked){
                    console.log("remove error message"); 
                    try {
                        errorMsg.remove()
                    } catch(err){
                        console.log(err)
                    }
                }
                
            })
            
        } 

    }
}

我不知道它本身是否写得高效，但它确实能胜任。

单页上多个表单的客户端表单验证

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