獲取選定的單選按鈕的值，以火力

Question

我有一個表格：

<form onsubmit="return send(this)"> 
<div> 
    <input type="radio" id="1" name="check" value="check1" checked="checked"> 
    <input type="radio" id="2" name="check" value="check2"> 
    <input type="radio" id="3" name="check" value="check3"> 
    </div> 
</form> 

和JS：

function send(formObj) { 
    myFirebase.push({ 
    checked: formObj.check.value 
    }) 
} 

我如何得到檢查輸入值，並將其傳遞到對象鍵checked？

Answer 1

var radiochecked = ""; 


for(i in formObj.check) { 
    if(formObj.check[i].checked) { 
    radiochecked = formObj.check[i].value; 
    } 
} 

function send(formObj) { 
    myFirebase.push({ 
    checked: radiochecked 
}