Question

我正在尝试验证电子邮件地址和邮政编码，但这似乎不起作用？我使用button onClick="validateForm()"，我应该使用input type="button"吗？它会有所作为吗？

function validateForm() {
    var x = document.getElementById("e1").value;
    var atpos = x.indexOf("@");
    var r1 = false;
    var dotpos = x.lastIndexOf(".");
    if (atpos < 1 || dotpos < atpos + 2 || dotpos + 2 >= x.length) {
        alert("Not a valid e-mail address");
    } else {
        r1 = true;
    }
    var patt = /[0-9]/g;
    var zipc = document.getElementById("u1").value;
    var result = zipc.match(patt);
    if (result && r1) {
        alert("Pattern matches for both");
    } else {
        alert("Pattern doesnt match");
    }
}

Answer 1

它对我来说很好：https://jsfiddle.net/q4Lkkps4/

<input id="e1" type="text" />
<input id="u1" type="text" />
<button onclick="validateForm();">go</button>
<script>
  function validateForm() {
    var x = document.getElementById("e1").value;
    var atpos = x.indexOf("@");
    var r1 = false;
    var dotpos = x.lastIndexOf(".");
    if (atpos < 1 || dotpos < atpos + 2 || dotpos + 2 >= x.length) {
      alert("Not a valid e-mail address");
    } else {
      r1 = true;
    }
    var patt = /[0-9]/g;
    var zipc = document.getElementById("u1").value;
    var result = zipc.match(patt);
    if (result && r1) {
      alert("Pattern matches for both");
    } else {
      alert("Pattern doesnt match");
    }
  }

</script>

虽然您所说的错误来自https://jsfiddle.net/dkyL41gr/

<script type="text/javascript">//<![CDATA[
window.onload=function(){
 function validateForm() {
    var x = document.getElementById("e1").value;
    var atpos = x.indexOf("@");
    var r1 = false;
    var dotpos = x.lastIndexOf(".");
    if (atpos < 1 || dotpos < atpos + 2 || dotpos + 2 >= x.length) {
      alert("Not a valid e-mail address");
    } else {
      r1 = true;
    }
    var patt = /[0-9]/g;
    var zipc = document.getElementById("u1").value;
    var result = zipc.match(patt);
    if (result && r1) {
      alert("Pattern matches for both");
    } else {
      alert("Pattern doesnt match");
    }
  }
}//]]> 

</script>
<body>
  <input id="e1" type="text">
<input id="u1" type="text">
<button onclick="validateForm();">go</button>
</body>

也许您以错误的方式使用脚本标记。

请在此粘贴测试代码。

以下java脚本有什么问题，它给我带来了函数未捕获的引用错误？

1 个答案: