How to get to a property in a filter in a dotted way?

Question

Angular

Good afternoon everyone. Hung up the model and the filter.
I hung the model on the input, let's say I hung the filter<input ng-model="paragraph">

<div ng-repeat="article in articles.values | filter:{article:paragraph}">
<!--Контент-->
</div>

The question is, how do I get to the property in json with the dot method in the filter? I can't get directly to the title property because it's in the article property.
This is how he swears

<div ng-repeat="article in articles.values | filter:{article.title:paragraph}"></div>

Thanks

Answer 1

There are three solutions:
In this case, of course, the first option is better than the others.