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AngularJS API Reference auto auto/service auto/service/$injector auto/service/$provide ng ng/directive ng/directive/a ng/directive/form ng/directive/input ng/directive/input[checkbox] ng/directive/input[date] ng/directive/input[dateTimeLocal] ng/directive/input[email] ng/directive/input[month] ng/directive/input[number] ng/directive/input[radio] ng/directive/input[text] ng/directive/input[time] ng/directive/input[url] ng/directive/input[week] ng/directive/ngApp ng/directive/ngBind ng/directive/ngBindHtml ng/directive/ngBindTemplate ng/directive/ngBlur ng/directive/ngChange ng/directive/ngChecked ng/directive/ngClass ng/directive/ngClassEven ng/directive/ngClassOdd ng/directive/ngClick ng/directive/ngCloak ng/directive/ngController ng/directive/ngCopy ng/directive/ngCsp ng/directive/ngCut ng/directive/ngDblclick ng/directive/ngDisabled ng/directive/ngFocus ng/directive/ngForm ng/directive/ngHide ng/directive/ngHref ng/directive/ngIf ng/directive/ngInclude ng/directive/ngInit ng/directive/ngKeydown ng/directive/ngKeypress ng/directive/ngKeyup ng/directive/ngList ng/directive/ngModel ng/directive/ngModelOptions ng/directive/ngMousedown ng/directive/ngMouseenter ng/directive/ngMouseleave ng/directive/ngMousemove ng/directive/ngMouseover ng/directive/ngMouseup ng/directive/ngNonBindable ng/directive/ngOpen ng/directive/ngPaste ng/directive/ngPluralize ng/directive/ngReadonly ng/directive/ngRepeat ng/directive/ngSelected ng/directive/ngShow ng/directive/ngSrc ng/directive/ngSrcset ng/directive/ngStyle ng/directive/ngSubmit ng/directive/ngSwitch ng/directive/ngTransclude ng/directive/ngValue ng/directive/script ng/directive/select ng/directive/textarea ng/filter ng/filter/currency ng/filter/date ng/filter/filter ng/filter/json ng/filter/limitTo ng/filter/lowercase ng/filter/number ng/filter/orderBy ng/filter/uppercase ng/function ng/function/angular.bind ng/function/angular.bootstrap ng/function/angular.copy ng/function/angular.element ng/function/angular.equals ng/function/angular.extend ng/function/angular.forEach ng/function/angular.fromJson ng/function/angular.identity ng/function/angular.injector ng/function/angular.isArray ng/function/angular.isDate ng/function/angular.isDefined ng/function/angular.isElement ng/function/angular.isFunction ng/function/angular.isNumber ng/function/angular.isObject ng/function/angular.isString ng/function/angular.isUndefined ng/function/angular.lowercase ng/function/angular.module ng/function/angular.noop ng/function/angular.toJson ng/function/angular.uppercase ng/object ng/object/angular.version ng/provider ng/provider/$animateProvider ng/provider/$compileProvider ng/provider/$controllerProvider ng/provider/$filterProvider ng/provider/$httpProvider ng/provider/$interpolateProvider ng/provider/$locationProvider ng/provider/$logProvider ng/provider/$parseProvider ng/provider/$rootScopeProvider ng/provider/$sceDelegateProvider ng/provider/$sceProvider ng/service ng/service/$anchorScroll ng/service/$animate ng/service/$cacheFactory ng/service/$compile ng/service/$controller ng/service/$document ng/service/$exceptionHandler ng/service/$filter ng/service/$http ng/service/$httpBackend ng/service/$interpolate ng/service/$interval ng/service/$locale ng/service/$location ng/service/$log ng/service/$parse ng/service/$q ng/service/$rootElement ng/service/$rootScope ng/service/$sce ng/service/$sceDelegate ng/service/$templateCache ng/service/$timeout ng/service/$window ng/type ng/type/$cacheFactory.Cache ng/type/$compile.directive.Attributes ng/type/$rootScope.Scope ng/type/angular.Module ng/type/form.FormController ng/type/ngModel.NgModelController ngAnimate ngAnimate/provider ngAnimate/provider/$animateProvider ngAnimate/service ngAnimate/service/$animate ngCookies ngCookies/service ngCookies/service/$cookies ngCookies/service/$cookieStore ngMessages ngMessages/directive ngMessages/directive/ngMessage ngMessages/directive/ngMessages ngMock ngMock/function ngMock/function/angular.mock.dump ngMock/function/angular.mock.inject ngMock/function/angular.mock.module ngMock/object ngMock/object/angular.mock ngMock/provider ngMock/provider/$exceptionHandlerProvider ngMock/service ngMock/service/$exceptionHandler ngMock/service/$httpBackend ngMock/service/$interval ngMock/service/$log ngMock/service/$timeout ngMock/type ngMock/type/angular.mock.TzDate ngMockE2E ngMockE2E/service ngMockE2E/service/$httpBackend ngResource ngResource/service ngResource/service/$resource ngRoute ngRoute/directive ngRoute/directive/ngView ngRoute/provider ngRoute/provider/$routeProvider ngRoute/service ngRoute/service/$route ngRoute/service/$routeParams ngSanitize ngSanitize/filter ngSanitize/filter/linky ngSanitize/service ngSanitize/service/$sanitize ngTouch ngTouch/directive ngTouch/directive/ngClick ngTouch/directive/ngSwipeLeft ngTouch/directive/ngSwipeRight ngTouch/service ngTouch/service/$swipe

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AngularJS: API: ng/filter/filter

Filter

  1. - filter in module ng

从array中选择一个条目子集，并作为一个新数组返回。

用法

用于HTML模板绑定

{{ filter_expression | filter : expression : comparator}}

用于JavaScript

$filter('filter')(array, expression, comparator)

参数

参数 类型 详述
array Array

源数组。
expression stringObjectfunction()

从array选择条目时的条件。

可以为以下之一：

  • string:作为表达式计算的字符串，计算结果作为子串匹配array中的内容。array中包含这个字符串的所有字符串或字符串属性对象会返回。字符串前可以放置!表示相反条件。

  • Object: 一个模式对象，用于过滤array中对象的指定属性。例如{name:"M", phone:"1"} 表示返回数据组中属性name 包含 "M" 和属性 phone 包含 "1"的条目。可以使用特殊属性名 $ (as in {$:"text"}) 来匹配对象中的所有属性。这相当于上面描述的使用string进行的子串简单匹配。

  • Function(value): 一个自定义过滤方法的函数。这个函数被每个array中的元素调用。最终结果为返回true的元素的数组。
comparator function(actual, expected)trueundefined

用于检测期望值(来自过滤表达式)和实际值(来自数组中的实际对象)是否匹配的比较器。

可以为以下之一：

  • Function(actual, expected): 这个函数会传入对象值和期望值来比较，如果条目返回true就会被包含在过滤结果中。

  • true: Function(actual, expected) { return angular.equals(expected, actual)}的便捷写法。它对期望值和实际值进行强比较。

  • false|undefined: 一个不区分大小写的子串匹配函数的便捷写法。

示例

index.html
<div ng-init="friends = [{name:'John', phone:'555-1276'},
                         {name:'Mary', phone:'800-BIG-MARY'},
                         {name:'Mike', phone:'555-4321'},
                         {name:'Adam', phone:'555-5678'},
                         {name:'Julie', phone:'555-8765'},
                         {name:'Juliette', phone:'555-5678'}]"></div>

Search: <input ng-model="searchText">
<table id="searchTextResults">
  <tr><th>名称</th><th>Phone</th></tr>
  <tr ng-repeat="friend in friends | filter:searchText">
    <td>{{friend.name}}</td>
    <td>{{friend.phone}}</td>
  </tr>
</table><hr>
Any: <input ng-model="search.$"> <br>
Name only <input ng-model="search.name"><br>
Phone only <input ng-model="search.phone"><br>
Equality <input Type="checkbox" ng-model="strict"><br>
<table id="searchObjResults">
  <tr><th>名称</th><th>Phone</th></tr>
  <tr ng-repeat="friendObj in friends | filter:search:strict">
    <td>{{friendObj.name}}</td>
    <td>{{friendObj.phone}}</td>
  </tr>
</table>
protractor.js
var expectFriendNames = Function(expectedNames, key) {
  element.all(by.repeater(key + ' in friends').column(key + '.name')).then(Function(arr) {
    arr.forEach(Function(wd, i) {
      expect(wd.getText()).toMatch(expectedNames[i]);
    });
  });};

it('should search across all fields when filtering with a string', Function() {
  var searchText = element(by.model('searchText'));
  searchText.clear();
  searchText.sendKeys('m');
  expectFriendNames(['Mary', 'Mike', 'Adam'], 'friend');

  searchText.clear();
  searchText.sendKeys('76');
  expectFriendNames(['John', 'Julie'], 'friend');});

it('should search in specific fields when filtering with a predicate object', Function() {
  var searchAny = element(by.model('search.$'));
  searchAny.clear();
  searchAny.sendKeys('i');
  expectFriendNames(['Mary', 'Mike', 'Julie', 'Juliette'], 'friendObj');});
it('should use a equal comparison when comparator is true', Function() {
  var searchName = element(by.model('search.name'));
  var strict = element(by.model('strict'));
  searchName.clear();
  searchName.sendKeys('Julie');
  strict.click();
  expectFriendNames(['Julie'], 'friendObj');});
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