How to Check Password Strength meter in Angular4

Question

Hello all how to check password strenght meter in angular using directive.

Puneet Kankar · Answer

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

Rajanikant Hawaldar · Answer

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 Team legend > div class = "form-group" > label for = "fullname" > Fullname label > 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" > Email label > 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" > Password label > 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.$invalid" > Submit button > form > div > div > body > html > Javascript: ( function () { angular.module( 'PasswordStrength' , []) .controller( 'FormController' , function ($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 0.5 s ease-in-out, background 0.25 s; } .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% ; }

Siddharth Gajbhiye · Answer

You can definetely create like this by using the below link https://jsfiddle.net/jaredwilli/5RrX7/ http://subarroca.github.io/ng-password-strength/