jquery 中的数组复选框验证

Question

我想使用 Jquery 验证数组复选框，但我不知道如何使用 jquery 验证复选框...这是我的代码

<div class="col-sm-8">
  <label class="checkbox-inline"><input type='checkbox' name='checkboxvar[]' value='0' id='checkboxvar[]'>L</label>
  <label class="checkbox-inline"><input type='checkbox' name='checkboxvar[]' value='1' id='checkboxvar[]'>M</label>
  <label class="checkbox-inline"><input type='checkbox' name='checkboxvar[]' value='2' id='checkboxvar[]'>Mi</label>
  <label class="checkbox-inline"><input type='checkbox' name='checkboxvar[]' value='3' id='checkboxvar[]'>J</label>
  <label class="checkbox-inline"><input type='checkbox' name='checkboxvar[]' value='4' id='checkboxvar[]'>V</label>
</div>

<script>
 function validate() {
        if($("#checkboxvar").is(':checked')) {
            alert("actived");
        } else {
            alert("No actived");
        }
    }
</script>

Answer 1

You can validate like below:

function validate(){
    if ($('input[name^=checkboxvar]:checked').length <= 0) {
        alert("Not active");
    }else{
        alert("active");
    }
}