使用Javascript提取单选按钮值
我的网页上有一个表单,如下所示:使用Javascript提取单选按钮值,javascript,html,forms,Javascript,Html,Forms,我的网页上有一个表单,如下所示: <form id="numberForm"> <input type="radio" name="number" value="singular"> singular <br> <input type="radio" name="number" value="plural"> plural <br> </form> var form=document.getElementById('num
<form id="numberForm">
<input type="radio" name="number" value="singular"> singular <br>
<input type="radio" name="number" value="plural"> plural <br>
</form>
var form=document.getElementById('numberForm');
var radios=form.getElementsByTagName('input');
对于(变量i=0;ivar form=document.getElementById('numberForm');
var radios=form.getElementsByTagName('input');
对于(变量i=0;i
试试这个(在JS中使用querySelector
):
函数getSel(){
var formInput=document.getElementById(“numberForm”);
var rb=formInput.querySelector('[type=“radio”]:选中');//获取选定单选按钮
document.getElementById('spVl')。innerHTML='Selected value='+rb.value;
}
单数
复数
试试这个(在JS中使用querySelector
):
函数getSel(){
var formInput=document.getElementById(“numberForm”);
var rb=formInput.querySelector('[type=“radio”]:选中');//获取选定单选按钮
document.getElementById('spVl')。innerHTML='Selected value='+rb.value;
}
单数
复数
var formInput = document.getElementById("numberForm");
var numberInputValue = formInput.SELECTEDBUTTON.value;
var form = document.getElementById('numberForm');
var radios = form.getElementsByTagName('input');
for(var i = 0; i < radios.length; ++i) {
if(radios[i].checked) {
console.log("Radio button '" + radios[i].value + "' is checked");
}
}