如何使用JavaScript检查多个复选框?
我有多个复选框如何使用JavaScript检查多个复选框?,javascript,arrays,checkbox,Javascript,Arrays,Checkbox,我有多个复选框 <div class="data"> <span> <input name="employee" type="checkbox" value="Alex"/> <label for="employee">Alex</label> </span> <span> <input name="employee" type="checkbox
<div class="data">
<span>
<input name="employee" type="checkbox" value="Alex"/>
<label for="employee">Alex</label>
</span>
<span>
<input name="employee" type="checkbox" value="Frank"/>
<label for="employee">Frank</label>
</span>
<span>
<input name="employee" type="checkbox" value="Mark"/>
<label for="employee">Mark</label>
</span>
</div>
亚历克斯
直率的
做记号
如何找到所有选中的复选框并创建带有选中结果的json或数组?尝试以下操作:
jQuery:
var selected = [];
$('.data input:checked').each(function() {
selected.push($(this).val());
});
Javascript:
var checkboxes = document.getElementsByName('employee');
var selected = [];
for (var i=0; i<checkboxes.length; i++) {
if (checkboxes[i].checked) {
selected.push(checkboxes[i].value);
}
}
var复选框=document.getElementsByName('employee');
所选var=[];
对于(var i=0;i使用querySelectorAll
:
var checked = document.querySelectorAll('[name="employee"]:checked');
支持:IE9+
var elements=document.getElementsByName('employee');
应该返回所需元素的数组
如果您只想使用纯/香草JS,下面是一个示例:
HTML标题
<script type="text/javascript">
function getCheckedCheckboxesFor(checkboxName) {
var checkboxes = document.querySelectorAll('input[name="' + checkboxName + '"]:checked'), values = [];
Array.prototype.forEach.call(checkboxes, function(el) {
values.push(el.value);
});
return values;
}
</script>
函数getCheckedCheckboxesFor(checkboxName){
var checkboxes=document.querySelectorAll('input[name=“”+checkboxName+”]:checked'),value=[];
Array.prototype.forEach.call(复选框、函数(el){
推送值(el值);
});
返回值;
}
HTML正文
<div class="data">
<span>
<input name="employee" type="checkbox" value="Alex"/>
<label for="employee">Alex</label>
</span>
<span>
<input name="employee" type="checkbox" value="Frank"/>
<label for="employee">Frank</label>
</span>
<span>
<input name="employee" type="checkbox" value="Mark"/>
<label for="employee">Mark</label>
</span>
<input type="button" onclick="alert(getCheckedCheckboxesFor('employee'));" value="Get Values" />
</div>
亚历克斯
直率的
做记号
JS Fiddle链接:函数已选中(){
var items=getElementsByname('checkbox');
var selectedlist=[];
对于(var i=0;i如何检查分页时是否有复选框?如何检查是否已选中?
function checked(){
var items=getElementsByname('checkbox');
var selectedlist=[];
for(var i=0; i<items.length; i++)
{
if(items[i].type=='checkbox' && items[i].checked==true)
selectedlist+=items[i].value+"\n";
}
alert(selectedlist);
}