我无法让我的 var 接受多个输入。
当我选择一个复选框时,它会显示我的值,但是,当我再次选择时,我得到了一个undefined
错误。
JavaScript
window.onload = function() {
var input= document.querySelectorAll('input#add2basket');
var radio= document.querySelectorAll('input#hi');
for (var j=0; j < radio.length; ++j){//loops over buttons
radio[j].onclick = function (){// find radio button
var input = findChecked(this.name);
alert (input.value)
return false;
// determine pizza size
//var size = input.value==='1'?‘Small':(input.value==='2'?'Regular':'Large');
// determine pizza price
//var price =Number(input.getAttribute('data‐price'));
// add a ‘new’ pizza to the basket
//addToBasket(newPizza(this.name,size, price));
};
};
function findChecked(name){
var css = 'input#hi[name="'+name+'"]';
var inputs = document.querySelectorAll(css);
var checked = _.filter(inputs, function (input){
document.write('<pre>'+input.checked+'</pre>')
return input.checked;
});
return checked.length===1?checked[0]:null;
}
}
HTML
<div>
<fieldset>
<legend class="Topping">Topping</legend>
<ul>
<li class="lastset"><input class="cbox" id="hi" name=
"top" type="checkbox" value="1"> <label class=
"box">Double Cheese</label></li>
<li class="lastset"><input class="cbox" id="hi" name=
"top" type="checkbox" value="2"> <label class=
"box">Peppers</label></li>
<li class="lastset"><input class="cbox" id="hi" name=
"top" type="checkbox" value="3"> <label class=
"box">Pepperoni</label></li>
<li class="lastset"><input class="cbox" id="hi" name=
"top" type="checkbox" value="4"> <label class=
"box">Olives</label></li>
<li class="lastset"><input class="cbox" id="hi" name=
"top" type="checkbox" value="5"> <label class=
"box">Beef</label></li>
<li class="lastset"><input class="cbox" id="hi" name=
"top" type="checkbox" value="6"> <label class=
"box">Seafood</label></li>
</ul>
</fieldset>
</div><!-- end topping -->
</form>
<div id="actionbtn">
<!--== action buttons==-->
<input class="apply" type="button" value=
"Back To Menu">
<input class="apply" name="top" id="add2basket" id="actionbtn2" type="button"
value="Proceed">
</div><!--==end of action buttons==-->
当我打印时input.checked
,它显示选定的框为真,但我从那里去哪里
请仅使用 JavaScript 解决方案。