Example
A typical use case for a filter is to remove values from an array. In this example we pass in an array and remove any nulls found in it, returning the array.
function removeNulls() {
return function(list) {
for (var i = list.length - 1; i >= 0; i--) {
if (typeof list[i] === 'undefined' ||
list[i] === null) {
list.splice(i, 1);
}
}
return list;
};
}
That would be used in the HTML like
{{listOfItems | removeNulls}}
or in a controller like
listOfItems = removeNullsFilter(listOfItems);
