Orders array
by the expression
predicate.
Note: this function is used to augment the Array
type in angular expressions. See
angular.Array
for more info.
angular.Array.orderBy(array, expression[, reverse]);
array – {Array} –
The array to sort.
expression – {function(*)|string|Array.<(function(*)|string)>} –
A predicate to be used by the comparator to determine the order of elements.
Can be one of:
function
: getter function. The result of this function will be sorted using the
<
, =
, >
operatorstring
: angular expression which evaluates to an object to order by, such as 'name' to
sort by a property called 'name'. Optionally prefixed with +
or -
to control ascending
or descending sort order (e.g. +name or -name).Array
: array of function or string predicates, such that a first predicate in the array
is used for sorting, but when the items are equivalent next predicate is used.reverse(optional) – {boolean} –
Reverse the order the array.
{Array}
– Sorted copy of the source array.
<div ng:init="friends = [{name:'John', phone:'555-1212', age:10}, {name:'Mary', phone:'555-9876', age:19}, {name:'Mike', phone:'555-4321', age:21}, {name:'Adam', phone:'555-5678', age:35}, {name:'Julie', phone:'555-8765', age:29}]"></div> <pre>Sorting predicate = {{predicate}}</pre> <hr/> <table ng:init="predicate='-age'"> <tr> <th><a href="" ng:click="predicate = 'name'">Name</a> (<a href ng:click="predicate = '-name'">^</a>)</th> <th><a href="" ng:click="predicate = 'phone'">Phone</a> (<a href ng:click="predicate = '-phone'">^</a>)</th> <th><a href="" ng:click="predicate = 'age'">Age</a> (<a href ng:click="predicate = '-age'">^</a>)</th> <tr> <tr ng:repeat="friend in friends.$orderBy(predicate)"> <td>{{friend.name}}</td> <td>{{friend.phone}}</td> <td>{{friend.age}}</td> <tr> </table>
it('should be reverse ordered by aged', function() { expect(binding('predicate')).toBe('Sorting predicate = -age'); expect(repeater('.doc-example-live table', 'friend in friends').column('friend.age')). toEqual(['35', '29', '21', '19', '10']); expect(repeater('.doc-example-live table', 'friend in friends').column('friend.name')). toEqual(['Adam', 'Julie', 'Mike', 'Mary', 'John']); }); it('should reorder the table when user selects different predicate', function() { element('.doc-example-live a:contains("Name")').click(); expect(repeater('.doc-example-live table', 'friend in friends').column('friend.name')). toEqual(['Adam', 'John', 'Julie', 'Mary', 'Mike']); expect(repeater('.doc-example-live table', 'friend in friends').column('friend.age')). toEqual(['35', '10', '29', '19', '21']); element('.doc-example-live a:contains("Phone")+a:contains("^")').click(); expect(repeater('.doc-example-live table', 'friend in friends').column('friend.phone')). toEqual(['555-9876', '555-8765', '555-5678', '555-4321', '555-1212']); expect(repeater('.doc-example-live table', 'friend in friends').column('friend.name')). toEqual(['Mary', 'Julie', 'Adam', 'Mike', 'John']); });