我可以访问每个 li[i] 返回您在图片中看到的内容。例如,li[i].innerText
返回 business
。如何获取每个元素的 checked
状态?
//loop through li elements in categories to add listeners
for(var i = 0 ; i < li.length; i++){
(function(i){
li[i].addEventListener('click', function(event) {
event.preventDefault();
//disallow repeats
if(checkedItems.indexOf(li[i].innerText) == -1){
checkedItems[counter] = li[i].innerText;
counter++;
console.log("added");
}
console.log(li[i].checked); //undefined
//remove element if unchecked from array
if(li[i].checked){
var index = checkedItems.indexOf(li[i].innerText);
console.log(li[i].innerText +": " + index);
checkedItems.splice(index, 1);
console.log("disabled");
counter--;
}
console.log(checkedItems);
});
}(i));
}
最佳答案
您需要获取对 input
元素的引用,可以按如下方式执行:
var input = this.querySelector('input[type=checkbox]');
...然后您可以使用input.checked
:
var li = document.querySelectorAll('li');
for(var i = 0 ; i < li.length; i++){
li[i].addEventListener('click', function(event) {
//event.preventDefault();
var input = this.querySelector('input[type=checkbox]');
console.log(this.textContent.trim(), input.checked);
});
}
<ul>
<li>
<span>test</span>
<input type="checkbox">
</li>
</ul>
关于javascript - li 输入复选框 : how to get checked state javascript,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/40775387/