javascript - 输入文本字段(移动应用程序)不允许用户使用 angularjs 输入数字值

Question

<input type="text"  
       ng-model="emp.eedKey007" 
       ng-keypress="nonNumericInput($event)" >

移动应用程序的输入文本字段(应用程序使用 ionic 和 angularjs )，该字段与 Controller 中的 $scope.emp.eedKey007 映射。我想让这个文本字段成为非数字字段。如果用户想要插入任何数值，他将无法在文本字段(移动)

中输入

$scope.nonNumericInput = function ($event) {
    console.log("key presed");
    $scope.showFixAlert = function() {
        var alertPopup = $ionicPopup.alert({
            title: $translate('Info'),
            template: $translate('Invalid Input ...')
        });
    };
    var charCode = $event.keyCode;
    if (charCode > 31 && (charCode < 48 || charCode > 57)) {  
        console.log("Character is pressed"); 
    } else {
        $scope.showFixAlert();
        /**/ what code should i need to use here so that i can restrict numeric value inserted in text field.** 
       // in below code i try to replace the numeric  character with blank character. which is assigned in eedKey007 but its not working correctly . I can't blank the textfield on numeric value insertion.
        var StringLang = $scope.emp.eedKey007;
        $scope.emp.eedKey007 = StringLang.replace(StringLang.slice(-1),''); 
    }
}

Answer 1

使用$event.preventDefault();在你的其他情况下。它将阻止在输入框中输入数值。