Angular sorting - Strings with undefined values are placed at the end

I am looking to understand how to effectively utilize the Angular orderBy filter with a custom sorting function that places undefined values at the end.

For numeric sorting, my code looks like this:

<tr ng-repeat="item in items | handleEmptyValues(sortOptions):sortOptions.reverse)">

In the controller:

handleEmptyValues (sortOptions) {

    const appendLast = sortOptions.reverse
        ? Number.MIN_SAFE_INTEGER
        : Number.MAX_SAFE_INTEGER;

    return (item) => (item.property) || appendLast;
}

My question is, how can I achieve the same functionality for sorting strings?

Many thanks!

Answer №1

If you are open to considering items with both undefined and '' (empty string) being treated equally in terms of weight, you may want to explore a different solution. One option is to replace undefined with '':

  1. Update the model directly or
  2. Implement a custom Angular filter (refer to the AngularJS Tutorial)

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