angular-hint-interpolation

Angular Hint: Interpolation

Angular Hint Interpolation lets you spend less time finding silent errors in your code and more time programming. This tool is a subset of many under the Angular Hint repository that specializes in identifying errors relating to directives. For instructions on how to incorporate the whole Angular Hint repository into your project, please refer to the link above.

Angular Hint Interpolation:

• Notifies of undefined parts of interpolation chains
• Suggests closest variable to the first undefined variable in chain

Undefined Parts Warning

Hint Interpolation addresses the problem of identifying where (withinin a chain) objects become undefined. For example, in the HTML code below (given the controller implementation further below) one would be notified that data.results[0].urls was found to be undefined in the interpolation data.results[0].entities.urls.main_url.

<a ng-href="{{data.results[0].urls.main_url}}">Link to Post</a>

Variable Suggestion

If your value that evaluates to undefined is close enough to the actual value, Hint Interpolation will suggest an alternative value. Using the HTML code below, you would be notified that data.results[0].entity was undefined but that you should try entities.

<a ng-href="{{data.results[0].entity.urls.main_url}}">Link to Post</a>

Example Controller Implementation:

// in a controller...
$scope.data = {
  "completed_in": 0.031,
  "refresh_url": "?sinceid=122078461840982016&q=blue%20angels",
  "results": [
    {
      "entities":{
        "urls": {
          "condensed_url": "http://t.co/L9JXJ2ee",
          "main_url": "http://t.co/imgs/users/venrov/L9JXJ2ee"
        }
      }
    }]
}

License

Copyright 2014 Google, Inc. http://angularjs.org

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.