javascript - 形成如何查找()电子邮件和密码输入

Question

我有一个表单可以通过 jQuery 中的 $.post() 提交数据。 PHP 文件以这种格式返回响应:

header('Content-type: javascript/json');
echo json_encode(['state' => true, 'message' => 'Some Message']);
exit;

编码后看起来像这样并且工作正常:

{state: true, message: 'Some Message'}

但是，我无法发送表单域。我尝试使用 find() 函数，但它在控制台中返回 undefined。

这是我的代码:

$(document).ready(function() {

  var Member = {

    login_form: $('#login'),
    create_form: $('#register'),
    response: false,
    response_message: '',

    login: function() {
      var email = this.login_form.find('input[type=email]').val();
      var password = this.create_form.find('input[type=password]').val();
      this.request('/members/login', {
        email: email,
        password: password
      });
    },
    create: function() {
      var email = this.create_form.find('input[type=email]').val();
      var password = this.create_form.find('input[type=password]').val();
      this.request('/members/create', {
        email: email,
        password: password
      });
    },
    request: function(uri, params) {
      $.post(uri, params)
        .done(function(r) {
          Member.response = r.state;
          if (!r.state) {
            Member.response_message = r.message;
          }
        });
    },
    getEmail: function() {
    	return this.create_form.find('input[type=email]').val();
    },
    getPassword: function() {
    	return this.create_form.find('input[type=password]').val();
    }

  };
  
  $('#submit').click(function() {
  	Member.login();
    console.log('[L_CTRL] Response : ' + Member.response_message);
    console.log('[L_CTRL] Email : ' + Member.getEmail());
    console.log('[L_CTRL] Password : ' + Member.getPassword());
  });

});

input {
  margin: 5px;
  background: none;
  padding: 5px;
  border: 1px solid #000;
  width: 80%;
}

button {
  padding: 5px;
  border: 1px solid #000;
  background: none;
  cursor: pointer;
}

button:hover {
  background: #000;
  color: #fff;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<h1>
Login
</h1>
<form id='login'>
<input type='email' placeholder='Enter your email address...'>
<input type='password' placeholder='Enter your unique password...'>
<button type='button' id='submit'>
Go
</button>
</form>

谁能指出我访问输入字段的 val() 的正确方向？谢谢。

更新:我不想直接使用它的 ID 找到它，即:

$('#email').val();

因为 ID 会因表单而异。

Answer 1

将 create_form 替换为 login_form，因为您现在选择的是注册表单，而不是登录表单:

getEmail: function() {
    return this.login_form.find('input[type=email]').val();
  },
  getPassword: function() {
    return this.login_form.find('input[type=password]').val();
  }

完整代码:

  var Member = {

    login_form: $('#login'),
    create_form: $('#register'),
    response: false,
    response_message: '',

    login: function() {
      var email = this.login_form.find('input[type=email]').val();
      var password = this.create_form.find('input[type=password]').val();
      this.request('/members/login', {
        email: email,
        password: password
      });
    },
    create: function() {
      var email = this.create_form.find('input[type=email]').val();
      var password = this.create_form.find('input[type=password]').val();
      this.request('/members/create', {
        email: email,
        password: password
      });
    },
    request: function(uri, params) {
      $.post(uri, params)
        .done(function(r) {
          Member.response = r.state;
          if (!r.state) {
            Member.response_message = r.message;
          }
        });
    },
    getEmail: function() {
    	return this.login_form.find('input[type=email]').val();
    },
    getPassword: function() {
    	return this.login_form.find('input[type=password]').val();
    }

  };
  
  $('#submit').click(function() {
  	Member.login();
    console.log('[L_CTRL] Response : ' + Member.response_message);
    console.log('[L_CTRL] Email : ' + Member.getEmail());
    console.log('[L_CTRL] Password : ' + Member.getPassword());
  });

input {
  margin: 5px;
  background: none;
  padding: 5px;
  border: 1px solid #000;
  width: 80%;
}

button {
  padding: 5px;
  border: 1px solid #000;
  background: none;
  cursor: pointer;
}

button:hover {
  background: #000;
  color: #fff;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<h1>
Login
</h1>
<form id='login'>
<input type='email' placeholder='Enter your email address...'>
<input type='password' placeholder='Enter your unique password...'>
<button type='button' id='submit'>
Go
</button>
</form>