Validating input based on array

Question

I need to validate an input so that it doesn't contain a string that also appears in a given array of strings.

To explain it using a simple example, the validation should fail when I type town, city or house. If there is any other string, it should pass.

<input type="text" ng-not-in="r.arr" ...

r.arr = ["town", "city", "house"]

I am aware of possibilities such as using $watch, writing my own directive or ng-pattern (well, for this case it's not suitable) however, is there something built in that would do this? If not, which approach should I choose, which is the "cleanest"?

Thanks

using ng-change directive, call a method and pass the value. You can compare there and do you stuff based on that. — Ved
– Ved, Commented Oct 21, 2015 at 12:57
If you want it tied into the form validation you need to use a directive with a custom ngModel validator in it — charlietfl
– charlietfl, Commented Oct 21, 2015 at 13:11

hoeni · Accepted Answer · 2015-10-21 13:51:55Z

1

You could use ui-validate from Angular UI. That way you don't have to write an own directive everytime, but simply use an expression (See JSfiddle):

    <input type="text" ng-model="mod.text" ui-validate="'list.indexOf($value)==-1'">

answered Oct 21, 2015 at 13:51

hoeni

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