javascript - 如何使用 JavaScript 检查多个复选框？

Question

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" value="Frank"/>
    <label for="employee">Frank</label>
    </span>    

    <span>
    <input name="employee" type="checkbox" value="Mark"/>
    <label for="employee">Mark</label>
    </span>
</div>

如何找到所有选中的复选框并创建带有检查结果的 json 或数组？

Answer 1

如果你只想使用纯/普通 JS，这里有一个例子:

HTML 头

<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>

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>

JS Fiddle 链接:http://jsfiddle.net/dY372/