Question

当我点击提交按钮时，它显示验证权限，但在该警报消息之后页面正在刷新，我从字段中删除所有其他数据：S，我怎样才能使其仍然保持其他字段填充。

我尝试在调用submit事件后删除window.location.reload（）但仍无效：S。有什么建议吗？

这是代码：

function formValidation() {
  var uid = document.registration.userid;
  var passid = document.registration.passid;
  var uname = document.registration.username;
  var uadd = document.registration.address;
  var ucountry = document.registration.country;
  var uzip = document.registration.zip;
  var uemail = document.registration.email;
  var umsex = document.registration.msex;
  var ufsex = document.registration.fsex;
  if (userid_validation(uid, 5, 12)) {
    if (passid_validation(passid, 7, 12)) {
      if (allLetter(uname)) {
        if (alphanumeric(uadd)) {
          if (countryselect(ucountry)) {
            if (allnumeric(uzip)) {
              if (ValidateEmail(uemail)) {
                if (validsex(umsex, ufsex)) {}
              }
            }
          }
        }
      }
    }
  }
  return false;

}
function userid_validation(uid, mx, my) {
  var uid_len = uid.value.length;
  if (uid_len == 0 || uid_len >= my || uid_len < mx) {
    alert("User Id should not be empty / length be between " + mx + " to " + my);
    uid.focus();
    return false;
  }
  return true;
}

function passid_validation(passid, mx, my) {
  var passid_len = passid.value.length;
  if (passid_len == 0 || passid_len >= my || passid_len < mx) {
    alert("Password should not be empty / length be between " + mx + " to " + my);
    passid.focus();
    return false;
  }
  return true;
}

function allLetter(uname) {
  var letters = /^[A-Za-z]+$/;
  if (uname.value.match(letters)) {
    return true;
  } else {
    alert('Username must have alphabet characters only');
    uname.focus();
    return false;
  }
}

function alphanumeric(uadd) {
  var letters = /^[0-9a-zA-Z]+$/;
  if (uadd.value.match(letters)) {
    return true;
  } else {
    alert('User address must have alphanumeric characters only');
    uadd.focus();
    return false;
  }
}

function countryselect(ucountry) {
  if (ucountry.value == "Default") {
    alert('Select your country from the list');
    ucountry.focus();
    return false;
  } else {
    return true;
  }
}

function allnumeric(uzip) {
  var numbers = /^[0-9]+$/;
  if (uzip.value.match(numbers)) {
    return true;
  } else {
    alert('ZIP code must have numeric characters only');
    uzip.focus();
    return false;
  }
}

function ValidateEmail(uemail) {
  var mailformat = /^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/;
  if (uemail.value.match(mailformat)) {
    return true;
  } else {
    alert("You have entered an invalid email address!");
    uemail.focus();
    return false;
  }
}
function validsex(umsex, ufsex) {
  x = 0;

  if (umsex.checked) {
    x++;
  }
  if (ufsex.checked) {
    x++;
  }
  if (x == 0) {
    alert('Select Male/Female');
    umsex.focus();
    return false;
  } else {
    alert('Form Succesfully Submitted');
    window.location.reload()
    return true;
  }
}

Answer 1

两个问题......

缺少回报

onSubmit =“return formValidation（）;”
缺少返回true;

if（validsex（umsex，ufsex））{return true; }

Javascript显示警报而不刷新页面

1 个答案: