AngularJS - OR filter for multiple, specific properties filtered by a single search string.

orFilter.js

app.filter('orFilter', function () {
  return function (objects, properties, comparator) {
    if (!objects|| objects.length === 0) {
      return [];
    }
    if (!properties || properties.length === 0) {
      return [];
    }
    if (!comparator || comparator.trim() === '') {
      return objects;
    }

    var filteredObjects = [];

    objects.forEach(function(object) {
      var objectMatches = false;

      // Check if any object expression matches the comparator
      properties.forEach(function (property) {
        if (!objectMatches && object[property].toLowerCase().indexOf(comparator.toLowerCase()) > -1) {
          objectMatches = true;
        }
      });

      // Add the current object to the list of filtered objects
      if (objectMatches) {
        filteredObjects.push(object);
      }
    });

    return filteredObjects;
  };
});

usage_example.html

<input ng-model="query">

<tr ng-repeat="object in objects | orFilter:['property1', 'property2', 'property3']:query">
  ...
</tr>