While it is possible to filter by friend.brand.id within friends in Angular, unfortunately the || undefined trick cannot be used to reset the filter when it is NULL

In the futuristic world of 2075, immortal humans have subjugated mortal humans. There exists a unique store where mortal friends are sold, and efforts are being made to develop an app that allows customers to manage their friends based on their favorite brands. However, there seems to be a glitch with angular.js.

<select ng-model="searchText2.id" ng-options="friend.brand.id as friend.name for friend in friends">
  <option value="">Select</option>
</select>

  <tr ng-repeat="friend in friends | filter:{brand:searchText2 || undefined}">

While I have successfully implemented filtering, the UX manager threatens to unleash cyber-albino-ligers if the filter does not reset upon selecting an option.

For more details, check out the PLUNKER example here ---> http://plnkr.co/edit/1MPc0BqQGPNIJZ9FRR6z?p=preview

javascriptangularjsangular-filters

Answer №1

The plunker has been updated with a potential solution.

In the filter, you can utilize a ternary statement to achieve your desired outcome.

<tr ng-repeat="friend in friends | filter:{ brand:(searchText2.id === null) ? {id: undefined}: searchText2}">

When "Select a name" is chosen as the default option, Angular will assign the value to null. However, if you want to remove the filter, you should pass in undefined.

I hope this assists you on your journey!

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