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docs(ngRepeat): add example for filters in conjunction with track by

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Peter Fern 2013-07-19 11:44:23 +10:00 committed by Pawel Kozlowski
parent b99d064b6d
commit bb8c3ec1a5
1 changed files with 7 additions and 3 deletions
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10
src/ng/directive/ngRepeat.js
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@ -80,7 +80,7 @@
* * `variable in expression` – where variable is the user defined loop variable and `expression`
* is a scope expression giving the collection to enumerate.
*
* For example: `track in cd.tracks`.
* For example: `album in artist.albums`.
*
* * `(key, value) in expression` – where `key` and `value` can be any user defined identifiers,
* and `expression` is the scope expression giving the collection to enumerate.
@ -91,7 +91,8 @@
* which can be used to associate the objects in the collection with the DOM elements. If no tracking function
* is specified the ng-repeat associates elements by identity in the collection. It is an error to have
* more than one tracking function to resolve to the same key. (This would mean that two distinct objects are
* mapped to the same DOM element, which is not possible.)
* mapped to the same DOM element, which is not possible.) Filters should be applied to the expression,
* before specifying a tracking expression.
*
* For example: `item in items` is equivalent to `item in items track by $id(item)'. This implies that the DOM elements
* will be associated by item identity in the array.
@ -101,10 +102,13 @@
* with the corresponding item in the array by identity. Moving the same object in array would move the DOM
* element in the same way ian the DOM.
*
* For example: `item in items track by item.id` Is a typical pattern when the items come from the database. In this
* For example: `item in items track by item.id` is a typical pattern when the items come from the database. In this
* case the object identity does not matter. Two objects are considered equivalent as long as their `id`
* property is same.
*
* For example: `item in items | filter:searchText track by item.id` is a pattern that might be used to apply a filter
* to items in conjunction with a tracking expression.
*
* @example
* This example initializes the scope to a list of names and
* then uses `ngRepeat` to display every person: