/Javascript/AngularJS/If else condition in angular if user enter string value in input integer

If else condition in angular if user enter string value in input integer

var numbers =/^[0-9]+$/;
 var code = $scope.Nuser.centerCode;
 alert(code);
 if(code.val(numbers))
 {
     alert(code.val(numbers));
 }
 else
 {
     alert("enter numbers only");
 }

Source: stackoverflow.com

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