AngularJS's filter, the Chinese name "filter" is used to filter the value of variables, or format the output to get the desired results or formats. There is a filterFilter function in AngularJS for filtering collections, which is very convenient.
The source code is roughly as follows:
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){ ... } } }) } }
The controller part is as follows:
angular .module('app') .controller('MainCtrl', ['$scope', function($scope) { $scope.users = $scope.users = [ {name: '', email: '', joined: 2015-1-1} ]; $scope.filter = { fuzzy: '', name: '' }; ... }]);
Search all any fields
<input type="text" ng-model="filter.any" > <tr ng-repeat="user in users | filter: filter.any"> <td>{{user.name}}</td> <td>{{user.email}}</td> <td>{{user.joined | date}}</td> </tr>
Search for a field
<input type="text" ng-model="filter.name"> <tr ng-repeat="user in users | filter: filter.any | filter: {name: filter.name}"> <td>{{user.name}}</td> <td>{{user.email}}</td> <td>{{user.joined | date}}</td> </tr>
If you want the name field to match exactly:
<tr ng-repeat="user in users | filter: filter.any | filter: {name: filter.name}:true"> <td>{{user.name}}</td> <td>{{user.email}}</td> <td>{{user.joined | date}}</td> </tr>
Search time period
The controller part is modified to:
angular .module('app') .controller('MainCtrl', ['$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; }; }]);
The page part is:
<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>
The above is the knowledge shared by the editor about how to use the filterFilter function in Angularjs to filter. I hope it will be helpful to everyone.