我正在使用驗證密碼來檢測檢測到的弱密碼或強密碼：
我有兩個例子：
This is Pure Javascript
var code = document.getElementById("password");
var strengthbar = document.getElementById("meter");
var display = document.getElementsByClassName("textbox")[0];
code.addEventListener("keyup", function() {
checkpassword(code.value);
});
function checkpassword(password) {
var strength = 0;
if (password.match(/[a-z]+/)) {
strength += 1;
}
if (password.match(/[A-Z]+/)) {
strength += 1;
}
if (password.match(/[0-9]+/)) {
strength += 1;
}
if (password.match(/[$@#&!]+/)) {
strength += 1;
}
if (password.length < 6) {
display.innerHTML = "minimum number of characters is 6";
}
if (password.length > 12) {
display.innerHTML = "maximum number of characters is 12";
}
switch (strength) {
case 0:
strengthbar.value = 0;
break;
case 1:
strengthbar.value = 25;
break;
case 2:
strengthbar.value = 50;
break;
case 3:
strengthbar.value = 75;
break;
case 4:
strengthbar.value = 100;
break;
}
}
<body>
<form class="center-block">
<input type="text" id="password" autocomplete="off" class="form-control input-lg">
<progress max="100" value="0" id="meter"></progress>
</form>
<div class="textbox text-center"> password </div>
</body>
這是 jQuery
function ValidatePassword() {
/*Array of rules and the information target*/
var rules = [{
Pattern: "[A-Z]",
Target: "UpperCase"
},
{
Pattern: "[a-z]",
Target: "LowerCase"
},
{
Pattern: "[0-9]",
Target: "Numbers"
},
{
Pattern: "[!@@#$%^&*]",
Target: "Symbols"
}
];
//Just grab the password once
var password = $(this).val();
/*Length Check, add and remove class could be chained*/
/*I've left them seperate here so you can see what is going on */
/*Note the Ternary operators ? : to select the classes*/
$("#Length").removeClass(password.length > 6 ? "glyphicon-remove" : "glyphicon-ok");
$("#Length").addClass(password.length > 6 ? "glyphicon-ok" : "glyphicon-remove");
/*Iterate our remaining rules. The logic is the same as for Length*/
for (var i = 0; i < rules.length; i++) {
$("#" + rules[i].Target).removeClass(new RegExp(rules[i].Pattern).test(password) ? "glyphicon-remove" : "glyphicon-ok");
$("#" + rules[i].Target).addClass(new RegExp(rules[i].Pattern).test(password) ? "glyphicon-ok" : "glyphicon-remove");
}
}
/*Bind our event to key up for the field. It doesn't matter if it's delete or not*/
$(document).ready(function() {
$("#NewPassword").on('keyup', ValidatePassword)
});
.glyphicon-remove {
color: red;
}
.glyphicon-ok {
color: green;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<div class="form-group has-feedback">
<input class="form-control" id="NewPassword" placeholder="New Password" type="password">
<span class="glyphicon glyphicon-lock form-control-feedback"></span>
</div>
<div id="Length" class="input glyphicon-remove">Must be at least 7 charcters</div>
<div id="UpperCase" class="glyphicon glyphicon-remove">Must have atleast 1 upper case character</div>
<div id="LowerCase" class="glyphicon glyphicon-remove">Must have atleast 1 lower case character</div>
<div id="Numbers" class="glyphicon glyphicon-remove">Must have atleast 1 numeric character</div>
<div id="Symbols" class="glyphicon glyphicon-remove">Must have atleast 1 special character</div>
