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>