Angular.js interpolation in filter parameter - angularjs

Question

I have a filter on a ng-repeat, which accepts a parameter. It currently works with a string.
<div ng-repeat="(key, value) in searchData | aboutFilter:'abo'">
Is is possible to use an interpolated value in place of the string?
<div ng-repeat="(key, value) in searchData | aboutFilter:'{{list.api}}'">
Here is my filter:
app.filter('aboutFilter', function() {
return function(items, input) {
var filtered = [];
angular.forEach(items, function (value,key) {
if(key===input){
filtered.push(value);
}
});
return filtered;
}
});
Here is the complete template logic:
<ul ng-repeat="list in englishList">
<a ng-class="{{list.title}}Hide" mobile-search-slide href="/about"><li><p>{{list.title}}</p><i class="fa fa-chevron-right"></i></li></a>
<ul id="hideMe" ng-class="'hide{{list.title}}'">
<div ng-cloak ng-repeat="(key, value) in searchData | aboutFilter:'{{list.api}}'">
<div ng-repeat="result in value" ng-class-odd="'odd'" ng-class-even="'even'">
<a ng-href="{{value.title}}/{{result.shortname}}">
<li>
<p>{{result.title}}</p><i class="fa fa-chevron-right"></i>
</li>
</a>
</div>
</div>
</li>
</ul>
</ul>

Answer 1

If you want to use some ng-modelfor filter, then you can just use the model name. No need to use {{}} expression.
In your case, it will be :
<div ng-cloak ng-repeat="(key, value) in searchData | aboutFilter:list.api">
DEMO
Remember in your filter, you are using string comparison. So the filter will check for exact matches.
And also, IN your filter:
You are comparing key with the input list.api. Here key will always be 0,1, etc index. You must be using value there instead of key