Question

It s difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.

Closed 11 years ago.

I am looking to have a password field with a submit button that on click of submit, if the password enter is not 12345, and error message will appear, but if 12345 is entered, it will go to www.URL.com

Answer 1

 function checkIfValid(){
     var yourField = document.getElementById( password ).value;
     if (yourField == "12345") { 
          window.location.href = "http://www.google.com"; 
          return true;
      }else{
          alert("NOT GOOD");
          return false;
      }
  }

注

<form name="FORMNAME" action="script.php" onSubmit="return checkIfValid()">
    <input name="password" id= password  type="password"/>
    <input type="submit" value= submit >
</form>

Answer 2

为探测纽扣吨,可使用<代码>onclick:

document.getElementById("button").onclick = function() {
    //code here
};

然后,为了获得投入的价值,你可以使用<代码>。

var value = document.getElementById("password").value;

比较一下,使用<条码>,如果是,平等操作者:

if (value == "12345")

You could show an "error message" with alert if the password is wrong:

alert("wrong password");

使用<条码>分处。

location.href = "www.url.com";

请注意,完全依赖客户方的认证部分(例如,浏览器 Java本)根本不可靠。

Answer 3

该守则是:

<><><><>>><>>>>><>>>>>>

<input type="password" id="pass" />
<input type="button" id="foo" value= Click me  />

<>JS

function addHandler(type, el, myFunction) {
    if (el.addEventListener) {
        el.addEventListener(type,myFunction,false);
    } else (el.attachEvent) {
        type =  on  + type;
        el.attachEvent(type,myFunction);
    }
}
var button = document.getElementById( foo );

addHandler( click , button, function () {
    var pass = document.getElementById( pass ).value;
    if (pass ===  12345 ) {
        window.location =  http://url.com/ ;       
    } else {
        alert( not so bad );
    }
});

当然,你可以把纽子改变为提交,没有很大的区别。

And the fiddle: 。

regards!

Answer 4

如果你们100%知道你正在做什么——我相信你不会这样做——那么:

<form action="" method="post" 
  onsubmit="if(passwd.value== myPass )location= http://example.com/ ;return false">
 <input type="password" name="passwd" />
 <button type="submit">Submit</button>
</form>

此外,我知道该编码是多余的(passwd,而不是添加一个贴现和打电话的<编码>文件.getElementById(通过wd ),或至少使用this.passwd),但通知是个排第一的;]

友情链接