javascript - 无需单击“提交”按钮即可提交表单

Question

无需点击提交按钮即可提交表单

<form id="formId" action="<?php echo Mage::getUrl('module/index/method') ?>" method="post"
      enctype="multipart/form-data">
          <input type="hidden" name="form_key" value="<?php echo Mage::getSingleton('core/session')->getFormKey() ?>">

        <div id="upload-file-container">
            <input id="img" type="file" name="img" onchange="this.form.submit()">
        </div>
            <input id="button" type="submit" value="Submit" name="submit" class="submit">
    </form>

Answer 1

使用

document.getElementById("formId").submit();