Question

我想用正则表达式确认密码，所以我决定分别验证密码和确认密码。但是密码和确认密码不匹配。因此，如何通过正则表达式javascript重新匹配密码并确认密码？谢谢。

// Validate password
if(upassid == "") {
    printError("passErr", "Please enter your Password*");
} else {
    var regex = /^(?=.*\d)(?=.*[a-z])(?=.*[A-Z])(?=.*[^a-zA-Z0-9])(?!.*\s).{8,15}$/;
    if(regex.test(upassid) === false) {
        printError("passErr", "Please enter a valid Password!*");
    } else{
        printError("passErr", "");
        passErr = false;
    }
}


// Validate confirm password
if(unpassid == "") {
    printError("unpassErr", "Please enter your Password*");
} else {
    var regex = /^(?=.*\d)(?=.*[a-z])(?=.*[A-Z])(?=.*[^a-zA-Z0-9])(?!.*\s).{8,15}$/;
    if(regex.test(unpassid) === false) {
        printError("unpassErr", "Please enter a valid Password!*");
    } else{
        printError("unpassErr", "");
        unpassErr = false;
    }
}

Answer 1

从您的代码看来，您在变量中同时具有密码和确认的密码。因此，如果它们匹配，我认为您不需要正则表达式进行比较。您可以这样做：

if (upassid != unpassid) {
    printError("unpassErr", "Passwords don't match");
}

因此，您的代码可能如下所示：

var regex = /^(?=.*\d)(?=.*[a-z])(?=.*[A-Z])(?=.*[^a-zA-Z0-9])(?!.*\s).{8,15}$/;

if (upassid == "") {
    printError("passErr", "Please enter your Password*");
} else if (unpassid == "") {
    printError("unpassErr", "Please confirm your Password!*");
} else if (upassid != unpassid) {
    printError("unpassErr", "Passwords do not match!*");
} else if(regex.test(upassid) === false) {
    printError("passErr", "Please enter a valid Password!*");
} else{
    printError("passErr", "");
    printError("unpassErr", "");
    passErr = false;
    unpassErr = false;
}

我已经对其进行了简化，因为您无需检查密码和确认是否都与您的正则表达式匹配，因此只需要密码进行匹配即可，并且确认与密码相同。

Answer 2

为什么在验证密码（upassid）后检查reqex以确认密码（unpassid）？为什么不只比较unpassid ==upassid？

if(upassid == "") {
    printError("passErr", "Please enter your Password*");
} else {
    var regex = /^(?=.*\d)(?=.*[a-z])(?=.*[A-Z])(?=.*[^a-zA-Z0-9])(?!.*\s).{8,15}$/;
    if(regex.test(upassid) === false) {
        printError("passErr", "Please enter a valid Password!*");
    } else if(unpassid !=upassid){
        printError("passErr", "Confirm Password does not match!*");
    } else {
       printError("unpassErr", "");
       unpassErr = false;
    }
}

如何验证密码并确认密码

2 个答案: