I have 2 text fields.
input type="text" placeholder="name" ng-model="name">
input type="text" placeholder="number" ng-model="number">
I validate that the button is not active if no data in text fields. I do not know how to make the button is disabled if there is no positive integer in the text field "number".
<button ng-disabled="!name || !number" value="buttonTest"></button>
I need to be a strictly input type = 'text'
HTML:
<body ng-app="app">
<div ng-controller="myController">
<input type="text" placeholder="name" ng-model="name">
<br/>
<input type="text" placeholder="1234" ng-model="number">
<br/>
<button ng-model="button" ng-disabled="!name || !parseInt(number) || number < 0">Button</button>
</div>
</body>
Script:
var app = angular.module('app', []);
app.controller('myController', ['$scope', function($scope) {
$scope.parseInt = parseInt;
}]);
Write a function in your controller to check these values and return the result. I sometimes use the length property of strings to determine if there's a value. It covers null, undefined, and empty strings.
$scope.isPositiveInteger = function(value) {
var floatValue = parseFloat(value);
var isInteger = floatValue % 1 === 0;
return isInteger && floatValue > 0;
}
HTML:
<button ng-disabled="name.length < 1 || !isPositiveInteger(number)" value="buttonTest"></button>
