无法让.focus()专注于Chrome,Safari和FF中带有ID的输入

时间:2013-09-25 17:16:09

标签: javascript jquery forms focus

我遇到的问题是我用来检查电子邮件的有效性,然后再将其发送到数据库。我有一个javascript代码,可以通过以下方式检查电子邮件:

  1. 查看第一封电子邮件是否为有效的电子邮件地址
  2. 查看两个电子邮件字段是否匹配
  3. 以下是表格的相关部分:

    <form action="URLGOESHERE" method="post" name="someName" onSubmit="return validation();" id="formId"> 
        <section class="sectionHeader">
            <h2>Contact Information</h2>
            <span class="important">*Required Fields</span>
        </section>
        <section id="contactInfo">
        <fieldset>
            <legend>Contact Information</legend>
            <div id="contact">
                <div class="inputGroupSameLine">
                     <label for="name" class="left"><span class="important">*</span>First Name:</label>
                     <input type="text" name="firstName" class="imp" size="20" maxlength="25" placeholder="John">
                </div>
                <div class="inputGroupSameLine">
                      <label for="name" class="left"><span class="important">*</span>Last Name:</label>         
                      <input type="text" name="lastName" class="imp" size="20" maxlength="25" placeholder="Smith">
                </div>
                <div class="inputGroupSL">
                    <span class="left"><label for="org">Company/Group Name:</label></span>
                    <input type="text" name="org" size="30" maxlength="50" placeholder="Auburn University">
                </div>
                <div class="inputGroupSameLine">
                    <span class="left"><label for="email"><span class="important">*</span>Email:</label></span>
                    <input name='email' id='email' class="imp" type='text' size='45' maxlength='45' placeholder="youremail@example.com" />
                </div>
                <div class="inputGroupSameLine">
                    <span class="left"><label for="email2"><span class="important">*</span>Re-type Email:</label></span>
                    <input name='email2' id='email2' class="imp" type='text' size='45' maxlength='45' placeholder="youremail@example.com"/>
                </div>
                <div id="phoneGroup">
                    <span class="left"><span class="important">*</span>Phone #:</span>
                    <input name='phone' type='text' class="imp" id="phone" size='12' maxlength='20' placeholder="xxx-xxx-xxxx"  />
                </div>
                <div id="extGroup">
                    <span class="left">Ext:</span>
                    <input name='ext' type='text' id="ext" size='12' maxlength='6' placeholder="xxxx"  />
                </div>
            </div>
        </fieldset>
    </section>
    

    这是我在onSubmit上运行的代码:

    var reEMail=/^\w[\w\-\.]+\@\w[\w\-]+(\.[\w\-]+)+$/;
    
    function validation() {
        if (!checkImportant()) {
            alert("Please enter information in all fields marked important.");
            return false;
        }
        if (!checkAttendees())
            return false;
        if (!checkEmail($('#email'),$('#email2')))
            return false;
        return true;
    }
    
    function checkImportant()   {
        important = document.getElementsByClassName('imp');
        for (i=0; i < important.length; i++) {
            if($(important[i]).val() == "") {
                $(important[i]).focus();
                return false;
            }
        }
        return true;
    }
    
    function checkAttendees() {
        total = 0 + Number($('#numAttend').val());
        parts = 0 + Number($('#8').val()) + 0 + Number($('#12').val()) + 0 + Number($('#16').val()) + 0 + Number($('#19').val()) + 0 + Number($('#26').val()) + 0 + Number($('#26').val()) + 0 + Number($('#55').val());
        count = 0;
        if (total != (parts)) {
            alert('Please check to ensure you have entered the correct number of participants.');
            count++;
            if (count%2 == 0) {
                $('#numAttend').focus();
                return false;   
            }
            else {
                $('#8').focus();
                return false;   
            }
        }
        return true;
    }
    
    function checkEmail(email,email2)   {
        if (goodEMail2(email)) {      
            if (email.val() != email2.val()) {
              alert("Please check to make sure your email address is correct in both fields!");
              email2.focus();
              return false;
            } 
            else return true;
        }
        else {
          alert("Please input a valid email address");
          setTimeout(function(){
        $('#email').focus();
        }, 100);
          email.select();
          return false;
        } 
        return false;
    }
    
    function goodEMail2(field) {
       return _checkIt2(reEMail, field);
    }
    
    function _checkIt2(re, field){
      if (!re.test(field.val())) {
          field.select();
          field.focus();
          return false;
      }
      else return true;
    }
    

    正如你在我的checkEmail函数的主要if else语句中所看到的,我不得不使用setTimeout来延迟对电子邮件字段的关注。如果我取出setTimeout,页面将不会关注元素。但是,如果我取出setTimeout并将指定的元素更改为第二个电子邮件字段,则可以正常工作。

    唯一的例外是IE10(我在FF,Chrome,Safari和IE10中的测试)。

    我真的不想使用这个工作,我不明白为什么我需要。任何人都可以给我一些想法或答案吗?

    谢谢!

    编辑:现在似乎无法让我的黑客上班。我不确定它之前做了什么...所以现在focus()根本不适用于那个特定元素。

1 个答案:

答案 0 :(得分:0)

变化:

function checkImportant()   {
    important = document.getElementsByClassName('imp');
    for (i=0; i < important.length; i++) {
        if($(important[i]).val() == "") {
            $(important[i]).focus();
            return false;
        }
    }
    return true;
}

为:

function checkImportant()   {
    important = document.getElementsByClassName('imp');
    for (i=0; i < important.length; i++) {
        if(important[i].value == "") { // drop the jQuery reference, not needed
            important[i].focus();      // drop the jQuery reference, not needed
            return false;
        }
    }
    return true;
}

在Chrome中为我工作