Filtar object angularjs

I do not know if you can directly access a property of the object in the way you're looking for, but I can think of the following.

<li ng-repeat="member in members | filter: { username: 'Jay'}">
 <p>{{member.username}}:{{member.pin}}</p>
</li>

Or if you look very motivated you make your own filter:

app.filter('nameFilter', function() {
    return function(elements,name) {
        for(elem in elements){
          if(elements[elem].username==name){
            return elements[elem].pin
          }
        }

        return name;
    };
});

Jay : {{members | nameFilter : 'Jay'}}

Here the plunkr

My recommendation for these things is the Lodash library.

  

Here is your official page

For these things, for example, you have the find method, from which you can see its documentation here

In code your problem would be solved:

JS

var members = [
        { username: 'SheoNarayan', address: 'Hyderabad', pin : '500049' },
        { username: 'Munna', address: 'Bokaro', pin: '8256598' },
        { username: 'Jay', address: 'Aurangabad', pin: '824101' },
        { username: 'Sreeni', address: 'New York', pin: 'BY-524' }
];

var userJay = _.find(memebers, ['username', 'Jay']);

HTML

Jay : {{ userJay.pin }}