How to Check Password Strength meter in Angular4

Hello Haridhass Mani, This wil help you

HTML :

>
<html class="no-js" ng-app="PasswordStrength">
<body>
<div class="main-container">
<div class="form-container">
<form action="" method="POST" name="joinTeamForm" role="form" ng-controller="FormController">
<legend class="form-label">Join the Teamlegend>
<div class="form-group">
<label for="fullname">Fullnamelabel>
<div class="error form-hint" ng-show="joinTeamForm.fullname.$dirty && joinTeamForm.fullname.$error.required" ng-cloak>{{"This field is required."}}div>
<input type="text" class="form-control" ng-class="(joinTeamForm.fullname.$dirty && joinTeamForm.fullname.$invalid) ? 'error' : ''" id="fullname" name="fullname" placeholder="Enter Fullname" ng-required="true" ng-model="fullname">
div>
<div class="form-group">
<label for="email">Emaillabel>
<div class="error form-hint" ng-show="joinTeamForm.email.$dirty && joinTeamForm.email.$error.required" ng-cloak>{{"This field is required."}}div>
<div class="error form-hint" ng-show="joinTeamForm.email.$dirty && joinTeamForm.email.$error.email" ng-cloak>{{"Email is invalid."}}div>
<input type="email" class="form-control" ng-class="(joinTeamForm.email.$dirty && joinTeamForm.email.$invalid) ? 'error' : ''" id="email" name="email" placeholder="Enter Email Address" ng-required="true" ng-model="email">
div>
<div class="form-group">
<label for="password">Passwordlabel>
<div class="form-hint">To conform with our Strong Password policy, you are required to use a sufficiently strong password. Password must be more than 7 characters.div>
<input type="password" class="form-control ok-password" ng-class="(joinTeamForm.password.$dirty && joinTeamForm.password.$invalid) ? 'error' : ''" id="password" name="password" placeholder="Enter Password" ng-required="true" ng-model="password">
<div class="label password-count" ng-class="password.length > 7 ? 'label-success' : 'label-danger'" ng-cloak>{{ password | passwordCount:7 }}div>
<div class="strength-meter">
<div class="strength-meter-fill" data-strength="{{passwordStrength}}">div>
div>
div>
<button type="submit" class="btn btn-primary" ng-disabled="joinTeamForm.$invalid">Submitbutton>
form>
div>
div>
body>
html>

Javascript:

(function() {
angular.module('PasswordStrength', [])
.controller('FormController', function($scope) {})
.filter('passwordCount', [function() {
return function(value, peak) {
value = angular.isString(value) ? value : '';
peak = isFinite(peak) ? peak : 7;
return value && (value.length > peak ? peak + '+' : value.length);
};
}])
.factory('zxcvbn', [function() {
return {
score: function() {
var compute = zxcvbn.apply(null, arguments);
return compute && compute.score;
}
};
}])
.directive('okPassword', ['zxcvbn', function(zxcvbn) {
return {
// restrict to only attribute and class
restrict: 'AC',
// use the NgModelController
require: 'ngModel',
// add the NgModelController as a dependency to your link function
link: function($scope, $element, $attrs, ngModelCtrl) {
$element.on('blur change keydown', function(evt) {
$scope.$evalAsync(function($scope) {
// update the $scope.password with the element's value
var pwd = $scope.password = $element.val();
// resolve password strength score using zxcvbn service
$scope.passwordStrength = pwd ? (pwd.length > 7 && zxcvbn.score(pwd) || 0) : null;
// define the validity criterion for okPassword constraint
ngModelCtrl.$setValidity('okPassword', $scope.passwordStrength >= 2);
});
});
}
};
}]);
})();

CSS:

[ng\:cloak],
[ng-cloak],
[data-ng-cloak],
[x-ng-cloak],
.ng-cloak,
.x-ng-cloak {
display: none !important;
}
body {
background: white;
margin: 0;
padding: 0;
}
.main-container {
display: table;
width: 400px;
position: absolute;
top: 0;
bottom: 0;
left: 0;
right: 0;
margin: auto;
}
.form-container {
position: relative;
bottom: 0;
display: table-cell;
vertical-align: middle;
}
.form-container form > div {
padding: 0 15px;
}
.form-container form > button {
margin-left: 15px;
}
legend.form-label {
font-size: 24pt;
padding: 0 15px;
}
.form-control.error {
border-color: red;
}
.form-hint {
font-size: 7pt;
line-height: 9pt;
margin: -5px auto 5px;
color: #999;
}
.form-hint.error {
color: #C00;
font-weight: bold;
font-size: 8pt;
}
.password-count {
float: right;
position: relative;
bottom: 24px;
right: 10px;
}
.strength-meter {
position: relative;
height: 3px;
background: #DDD;
margin: 10px auto 20px;
border-radius: 3px;
}
.strength-meter:before,
.strength-meter:after {
content: '';
height: inherit;
background: transparent;
display: block;
border-color: #FFF;
border-style: solid;
border-width: 0 5px 0 5px;
position: absolute;
width: 80px;
z-index: 10;
}
.strength-meter:before {
left: 70px;
}
.strength-meter:after {
right: 70px;
}
.strength-meter-fill {
background: transparent;
height: inherit;
position: absolute;
width: 0;
border-radius: inherit;
transition: width 0.5s ease-in-out, background 0.25s;
}
.strength-meter-fill[data-strength='0'] {
background: darkred;
width: 20%;
}
.strength-meter-fill[data-strength='1'] {
background: orangered;
width: 40%;
}
.strength-meter-fill[data-strength='2'] {
background: orange;
width: 60%;
}
.strength-meter-fill[data-strength='3'] {
background: yellowgreen;
width: 80%;
}
.strength-meter-fill[data-strength='4'] {
background: green;
width: 100%;
}

3 Replies

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Puneet Kankar6y ago
Hello Haridass,

Go through given below link maybe helpful.

https://www.npmjs.com/package/angular-password-strength-meter

https://medium.com/angular-material-extensions/how-to-build-a-password-strength-meter-with-angular-and-material-design-97a32262a94a

https://github.com/rnadler/ng2-password-strength-bar
0
Rajanikant Hawaldar6y ago
Hello Haridhass Mani, This wil help you
HTML :
>
<html class="no-js" ng-app="PasswordStrength">

    <body>
        <div class="main-container">
            <div class="form-container">

                <form action="" method="POST" name="joinTeamForm" role="form" ng-controller="FormController">
                    <legend class="form-label">Join the Teamlegend>

                    <div class="form-group">
                        <label for="fullname">Fullnamelabel>

                        <div class="error form-hint" ng-show="joinTeamForm.fullname.$dirty && joinTeamForm.fullname.$error.required" ng-cloak>{{"This field is required."}}div>

                        <input type="text" class="form-control" ng-class="(joinTeamForm.fullname.$dirty && joinTeamForm.fullname.$invalid) ? 'error' : ''" id="fullname" name="fullname" placeholder="Enter Fullname" ng-required="true" ng-model="fullname">
                    div>

                    <div class="form-group">
                        <label for="email">Emaillabel>

                        <div class="error form-hint" ng-show="joinTeamForm.email.$dirty && joinTeamForm.email.$error.required" ng-cloak>{{"This field is required."}}div>

                        <div class="error form-hint" ng-show="joinTeamForm.email.$dirty && joinTeamForm.email.$error.email" ng-cloak>{{"Email is invalid."}}div>

                        <input type="email" class="form-control" ng-class="(joinTeamForm.email.$dirty && joinTeamForm.email.$invalid) ? 'error' : ''" id="email" name="email" placeholder="Enter Email Address" ng-required="true" ng-model="email">
                    div>

                    <div class="form-group">
                        <label for="password">Passwordlabel>

                        <div class="form-hint">To conform with our Strong Password policy, you are required to use a sufficiently strong password. Password must be more than 7 characters.div>

                        <input type="password" class="form-control ok-password" ng-class="(joinTeamForm.password.$dirty && joinTeamForm.password.$invalid) ? 'error' : ''" id="password" name="password" placeholder="Enter Password" ng-required="true" ng-model="password">

                        <div class="label password-count" ng-class="password.length > 7 ? 'label-success' : 'label-danger'" ng-cloak>{{ password | passwordCount:7 }}div>

                        <div class="strength-meter">
                            <div class="strength-meter-fill" data-strength="{{passwordStrength}}">div>
                        div>
                    div>

                    <button type="submit" class="btn btn-primary" ng-disabled="joinTeamForm.$invalid">Submitbutton>
                form>

            div>
        div>
    body>

html>
Javascript:
(function() {

    angular.module('PasswordStrength', [])

    .controller('FormController', function($scope) {})

    .filter('passwordCount', [function() {
        return function(value, peak) {
            value = angular.isString(value) ? value : '';
            peak = isFinite(peak) ? peak : 7;

            return value && (value.length > peak ? peak + '+' : value.length);
        };
    }])

    .factory('zxcvbn', [function() {
        return {
            score: function() {
                var compute = zxcvbn.apply(null, arguments);
                return compute && compute.score;
            }
        };
    }])

    .directive('okPassword', ['zxcvbn', function(zxcvbn) {
        return {
            // restrict to only attribute and class
            restrict: 'AC',

            // use the NgModelController
            require: 'ngModel',

            // add the NgModelController as a dependency to your link function
            link: function($scope, $element, $attrs, ngModelCtrl) {
                $element.on('blur change keydown', function(evt) {
                    $scope.$evalAsync(function($scope) {
                        // update the $scope.password with the element's value
                        var pwd = $scope.password = $element.val();

                        // resolve password strength score using zxcvbn service
                        $scope.passwordStrength = pwd ? (pwd.length > 7 && zxcvbn.score(pwd) || 0) : null;

                        // define the validity criterion for okPassword constraint
                        ngModelCtrl.$setValidity('okPassword', $scope.passwordStrength >= 2);
                    });
                });
            }
        };
    }]);

})();
CSS:
[ng\:cloak],
[ng-cloak],
[data-ng-cloak],
[x-ng-cloak],
.ng-cloak,
.x-ng-cloak {
    display: none !important;
}

body {
    background: white;
    margin: 0;
    padding: 0;
}

.main-container {
    display: table;
    width: 400px;
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    margin: auto;
}

.form-container {
    position: relative;
    bottom: 0;
    display: table-cell;
    vertical-align: middle;
}

.form-container form > div {
    padding: 0 15px;
}

.form-container form > button {
    margin-left: 15px;
}

legend.form-label {
    font-size: 24pt;
    padding: 0 15px;
}

.form-control.error {
    border-color: red;
}

.form-hint {
    font-size: 7pt;
    line-height: 9pt;
    margin: -5px auto 5px;
    color: #999;
}

.form-hint.error {
    color: #C00;
    font-weight: bold;
    font-size: 8pt;
}

.password-count {
    float: right;
    position: relative;
    bottom: 24px;
    right: 10px;
}

.strength-meter {
    position: relative;
    height: 3px;
    background: #DDD;
    margin: 10px auto 20px;
    border-radius: 3px;
}

.strength-meter:before,
.strength-meter:after {
    content: '';
    height: inherit;
    background: transparent;
    display: block;
    border-color: #FFF;
    border-style: solid;
    border-width: 0 5px 0 5px;
    position: absolute;
    width: 80px;
    z-index: 10;
}

.strength-meter:before {
    left: 70px;
}

.strength-meter:after {
    right: 70px;
}

.strength-meter-fill {
    background: transparent;
    height: inherit;
    position: absolute;
    width: 0;
    border-radius: inherit;
    transition: width 0.5s ease-in-out, background 0.25s;
}

.strength-meter-fill[data-strength='0'] {
    background: darkred;
    width: 20%;
}

.strength-meter-fill[data-strength='1'] {
    background: orangered;
    width: 40%;
}

.strength-meter-fill[data-strength='2'] {
    background: orange;
    width: 60%;
}

.strength-meter-fill[data-strength='3'] {
    background: yellowgreen;
    width: 80%;
}

.strength-meter-fill[data-strength='4'] {
    background: green;
    width: 100%;
}
0
Siddharth Gajbhiye6y ago
You can definetely create like this by using the below link

https://jsfiddle.net/jaredwilli/5RrX7/

http://subarroca.github.io/ng-password-strength/
0