Add some undefined checks to your custom filters to prevent them breaking when bad/malformed/wrong type/data is passed to it.
For example
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app.filter('currentUserToTop', function () { return function (users, current) { if ( var newList = []; angular.forEach(users, function (u) { if (u.id == current) { newList.unshift(u); } else { newList.push(u); } }); return newList; }; }); |
Expects users to be an array and current to be a number (string for loose comparisons).
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<ul> <li data-ng-repeat="u in users | currentUserToTop:user.id"> ... </li> </ul> |
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users = users (array) current = user.id (number) |
If they were different format or undefined it would break horribly.
Different ways you can check.
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// if (!angular.isUndefined(users) && !angular.isUndefined(user)) { ... ... |