Angularjs中如何使用filterFilter函数过滤

2019-11-20 10:36:52

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AngularJS的filter，中文名“过滤器”是用来过滤变量的值，或者格式化输出，得到自己所期望的结果或格式的东东。AngularJS中有一个filterFilter函数用来对集合过滤，非常方便。

源代码大致如下：

function filterFilter(){return function(aray, expression comparator){if(!isArray(array)) return array;var comparatorType = typeof(comparator),predicates = [],evaluatedObjects = [];predicates.check = function(value){for(var j = 0; j < predicates.length; jii){if(!predicates[j](value){return false;})}return true;} if(comparatorType != 'function'{if(comparatorType === 'boolean' && comparator){comparator = function(obj, text){return angular.equals(obj, text);}} else {comparator = function(obj, text){...}}}) }}

controller部分如下：

angular.module('app').controller('MainCtrl', ['$scope',function($scope) {$scope.users = $scope.users = [{name: '', email: '', joined: 2015-1-1}];$scope.filter = {fuzzy: '',name: ''};...}]);

搜索所有任意字段

<input type="text" ng-model="filter.any" ><tr ng-repeat="user in users | filter: filter.any"><td>{{user.name}}</td><td>{{user.email}}</td><td>{{user.joined | date}}</td></tr>

搜索某个字段

<input type="text" ng-model="filter.name"><tr ng-repeat="user in users | filter: filter.any| filter: {name: filter.name}"><td>{{user.name}}</td><td>{{user.email}}</td><td>{{user.joined | date}}</td></tr>

如果想name字段完全匹配：

<tr ng-repeat="user in users | filter: filter.any| filter: {name: filter.name}：true"><td>{{user.name}}</td><td>{{user.email}}</td><td>{{user.joined | date}}</td></tr>

搜索时间段

contrlller部分修改为：

angular.module('app').controller('MainCtrl', ['$scope',function($scope) {$scope.users = $scope.users = [{name: '', email: '', joined: 2015-1-1}];$scope.filter = {fuzzy: '',name: ''};$scope.minDate = new Date('January 1, 2000');$scope.maxDate = new Date();$scope.min = function(actual, expected) {return actual >= expected;};$scope.max = function(actual, expected) {return actual <= expected;};}]);

页面部分为：

<input type="text" ng-model="fromDate" data-min-date="{{minDate}}"><input type="text" ng-model="untilDate" data-max-date="{{maxDate}}"><tr ng-repeat="user in users | filter: filter.any| filter: {name: filter.name}| filter: {joined: untilDate}:max| filter: {joined: beforeDate}:min"><td>{{user.name}}</td><td>{{user.email}}</td><td>{{user.joined | date}}</td></tr>

以上所述是小编给大家分享的Angularjs中如何使用filterFilter函数过滤的相关知识，希望对大家有所帮助。

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