Ng-Pattern-6

In this we should only write alphabets between a-z,A-Z in textbox otherwise it give error.

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title></title>
    <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.2/angular.min.js"></script>
</head>
<body ng-app="app">
    <div ng-controller="controllerName">
        <ng-form name="stringForm">
            String Only: <input type="text" ng-model="number" name="number" ng-pattern="RE" /><br />
            <span ng-show="stringForm.number.$error.pattern" style="color:red">Enter only string.</span>
        </ng-form>
    </div>
    <script>
    var app = angular.module("app", []);
    app.controller('controllerName', ['$scope', function ($scope) {
        $scope.RE = /^[a-zA-Z ]{1,25}$/;
    }]);
</script>
</body>
</html>

Output