Validation of date format in AngularJS when using the input type date

Question

Validation of date format in AngularJS when using the input type date

Attempting to generate a date using AngularJS, following the provided documentation.

Input with date validation and transformation. If the browser does not support HTML5 date input, a text element will be used instead. In this scenario, text should be entered in the valid ISO-8601 date format (yyyy-MM-dd), for example: 2009-01-06. Since some modern browsers do not yet support this input type, it's crucial to provide guidance to users on the expected input format via a placeholder or label.

The system only accepts dates in the valid ISO-8601 format (yyyy-MM-dd).

Attempted to specify a new date format in the attribute pattern as demonstrated in the code snippet below:

<div ng-app="">
  <form name="frmSPA" novalidate>
    <input type="date" placeholder="Enter SPA Date" pattern="dd/MM/yyyy" name="SPADate" ng-model="SPADate" ng-required="true" />
    <span ng-show="frmSPA.SPADate.$touched && frmSPA.SPADate.$error.required">SPA Date is required</span>
    <span ng-show="frmSPA.SPADate.$touched && frmSPA.SPADate.$error.date">Not a valid date</span>
  </form>
</div>

However, this approach was unsuccessful.

How can you modify the default date format to dd/MM/yyyy? Here is the jsfiddle.

javascript angularjs date

Answer 1

Answer №1

If you want maximum cross-browser compatibility, consider creating a custom directive for handling dates in AngularJS. Here's an example:

angular
    .module('MyApp', [])
    .controller('MainCtrl', function ($scope, dateFilter) {
        $scope.date = new Date();
    })
    .directive(
        'dateInput',
        function(dateFilter) {
            return {
                require: 'ngModel',
                template: '<input type="date"></input>',
                replace: true,
                link: function(scope, elm, attrs, ngModelCtrl) {
                    ngModelCtrl.$formatters.unshift(function (modelValue) {
                        return dateFilter(modelValue, 'dd-MM-yyyy');
                    });

                    ngModelCtrl.$parsers.unshift(function(viewValue) {
                        return new Date(viewValue);
                    });
                },
            };
    });

Check out this jsfiddle link for a demo.

Answer 2

If you want maximum cross-browser compatibility, consider creating a custom directive for handling dates in AngularJS. Here's an example:

angular
    .module('MyApp', [])
    .controller('MainCtrl', function ($scope, dateFilter) {
        $scope.date = new Date();
    })
    .directive(
        'dateInput',
        function(dateFilter) {
            return {
                require: 'ngModel',
                template: '<input type="date"></input>',
                replace: true,
                link: function(scope, elm, attrs, ngModelCtrl) {
                    ngModelCtrl.$formatters.unshift(function (modelValue) {
                        return dateFilter(modelValue, 'dd-MM-yyyy');
                    });

                    ngModelCtrl.$parsers.unshift(function(viewValue) {
                        return new Date(viewValue);
                    });
                },
            };
    });

Check out this jsfiddle link for a demo.

Answer 3

Answer №2

Consider using ng-pattern instead of pattern for better validation.
It is recommended to utilize a regular expression rather than a date format to accurately validate the date.

ng-pattern='/(([0-2]?\d{1})|([3][0,1]{1}))/^[0,1]?\d{1}/(([1]{1}[9]{1}[9]{1}\d{1})|([2-9]{1}\d{3}))$/'

This revised approach should yield successful results.

Answer 4

Consider using ng-pattern instead of pattern for better validation.
It is recommended to utilize a regular expression rather than a date format to accurately validate the date.

ng-pattern='/(([0-2]?\d{1})|([3][0,1]{1}))/^[0,1]?\d{1}/(([1]{1}[9]{1}[9]{1}\d{1})|([2-9]{1}\d{3}))$/'

This revised approach should yield successful results.

Answer 5

Answer №3

To ensure that the ng-pattern also accounts for leap years, it is designed to work with dates in the 'MM-dd-YYYY' format.

The ng-pattern used is: '/^(((0[13578]|1[02])-(0[1-9]|[12]\d|3[01])-((19|[2-9]\d)\d{2}))|((0[13456789]|1[012])-(0[1-9]|[12]\d|30)-((19|[2-9]\d)\d{2}))|(02-(0[1-9]|1\d|2[0-8])-((19|[2-9]\d)\d{2}))|(02-29-((1[6-9]|[2-9]\d)(0[48]|[2468][048]|[13579][26])|((16|[2468][048]|[3579][26])00))))$/ '

Answer 6

To ensure that the ng-pattern also accounts for leap years, it is designed to work with dates in the 'MM-dd-YYYY' format.

The ng-pattern used is: '/^(((0[13578]|1[02])-(0[1-9]|[12]\d|3[01])-((19|[2-9]\d)\d{2}))|((0[13456789]|1[012])-(0[1-9]|[12]\d|30)-((19|[2-9]\d)\d{2}))|(02-(0[1-9]|1\d|2[0-8])-((19|[2-9]\d)\d{2}))|(02-29-((1[6-9]|[2-9]\d)(0[48]|[2468][048]|[13579][26])|((16|[2468][048]|[3579][26])00))))$/ '

Validation of date format in AngularJS when using the input type date

Answer №1

Answer №2

Answer №3

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