Javascript 按条件对数组中的多个项进行角度筛选
尝试创建一个过滤器,当单击某个名称时,该过滤器将显示该特定名称:Javascript 按条件对数组中的多个项进行角度筛选,javascript,arrays,angularjs,object,filter,Javascript,Arrays,Angularjs,Object,Filter,尝试创建一个过滤器,当单击某个名称时,该过滤器将显示该特定名称: {'username': 'julio', 'status': 'created'}, {'username': 'julio', 'status': 'running'}. 然后,如果单击某个条件,则仅显示具有该条件的一个对象: {'username': 'julio', 'status': 'created'} 请注意: angular.module('app',[]) .controller('Ctrl',函数($s
{'username': 'julio', 'status': 'created'}, {'username': 'julio', 'status': 'running'}.
然后,如果单击某个条件,则仅显示具有该条件的一个对象:
{'username': 'julio', 'status': 'created'}
请注意:
angular.module('app',[])
.controller('Ctrl',函数($scope){
$scope.users=[
{'username':'julio','status':'created'},
{'username':'julio','status':'running'},
{'username':'phillip','status':'running'},
{'username':'mats','status':'created'}
];
$scope.filtered=[];
$scope.optionProp='';
$scope.includeItem=功能(项目、道具){
$scope.optionProp=prop;
var idx=$scope.filtered.indexOf(项目);
如果(idx>-1){
$scope.filtered.splice(idx,1);
}否则{
$scope.filtered.push(项目);
}
}
$scope.filterFn=函数(项){
如果($scope.filtered.length>0){//第一次
console.info($scope.filtered.length>0);
如果($scope.filtered.indexOf(项[$scope.optionProp])<0){
console.warn($scope.filtered.indexOf(item.username));
返回;
}
}
退货项目;
}
})
.filter(“唯一”,函数(){
返回函数(数据、属性名称){
if(angular.isArray(数据)和&angular.isString(propertyName)){
var结果=[];
var键={};
对于(变量i=0;i
{{s}
-
{{u.username}
{{u.status}}
这里正在工作。我已将optionProp
更改为一个数组以容纳多个属性更改,并相应地修改了includeItem
和filterFn
<!DOCTYPE html>
<html ng-app="app">
<head>
<style>
li {outline: 2px solid gray; padding: 5px; list-style: none;}
</style>
<script data-require="angular.js@1.3.0-beta.5" data-semver="1.3.0-beta.5" src="https://code.angularjs.org/1.3.0-beta.5/angular.js"></script>
<script>
'use strict'
angular.module('app', [])
.controller('Ctrl', function ($scope) {
$scope.users = [
{'username': 'julio', 'status': 'created'},
{'username': 'julio', 'status': 'running'},
{'username': 'phillip', 'status': 'running'},
{'username': 'mats', 'status': 'created'}
];
$scope.filtered = [];
$scope.optionProp = [];
$scope.includeItem = function(item, prop) {
var idx = $scope.filtered.indexOf(item);
if (idx > -1) {
$scope.filtered.splice(idx, 1);
var idy = $scope.optionProp.indexOf(prop);
$scope.optionProp.splice(idy, 1);
} else {
$scope.filtered.push(item);
$scope.optionProp.push(prop);
}
}
$scope.filterFn = function(item) {
if ($scope.filtered.length > 0) {// first time
console.info( $scope.filtered.length > 0 );
for (var i = 0; i < $scope.optionProp.length; i++) {
if ($scope.filtered.indexOf(item[$scope.optionProp[i]]) < 0){
console.warn( $scope.filtered.indexOf(item.username ) );
return;
}
}
}
console.log( item );
return item;
}
})
.filter("unique", function () {
return function (data, propertyName) {
if (angular.isArray(data) && angular.isString(propertyName)) {
var results = [];
var keys = {};
for (var i = 0; i < data.length; i++) {
var val = data[i][propertyName];
if (angular.isUndefined(keys[val])) {
keys[val] = true;
results.push(val);
}
}
return results;
} else {
return data;
}
}
});
</script>
</head>
<body ng-controller="Ctrl">
<div ng-repeat="user in users | unique:'username'">
<input id="inputuser" type="checkbox" ng-model="input.chkUser" ng-click="includeItem(user, 'username')" /> {{user}}
</div>
<hr />
<div ng-repeat="s in users | unique:'status'">
<input id="inputstatus" type="checkbox" ng-model="input.chkStatus" ng-click="includeItem(s, 'status')"/> {{s}}
</div>
<ul>
<li ng-repeat="u in users | filter:filterFn">
<p>{{u.username}}</p>
<p>{{u.status}}</p>
</li>
</ul>
Filter dump: {{filtered}}
</body>
</html>
li{轮廓:2px纯灰色;填充:5px;列表样式:无;}
“严格使用”
角度.module('app',[])
.controller('Ctrl',函数($scope){
$scope.users=[
{'username':'julio','status':'created'},
{'username':'julio','status':'running'},
{'username':'phillip','status':'running'},
{'username':'mats','status':'created'}
];
$scope.filtered=[];
$scope.optionProp=[];
$scope.includeItem=功能(项目、道具){
var idx=$scope.filtered.indexOf(项目);
如果(idx>-1){
$scope.filtered.splice(idx,1);
var idy=$scope.optionProp.indexOf(prop);
$scope.optionProp.splice(idy,1);
}否则{
$scope.filtered.push(项目);
$scope.optionProp.push(道具);
}
}
$scope.filterFn=函数(项){
如果($scope.filtered.length>0){//第一次
console.info($scope.filtered.length>0);
对于(变量i=0;i<$scope.optionProp.length;i++){
if($scope.filtered.indexOf(项[$scope.optionProp[i]])<0){
console.warn($scope.filtered.indexOf(item.username));
返回;
}
}
}
控制台日志(项目);
退货项目;
}
})
.filter(“唯一”,函数(){
返回函数(数据、属性名称){
if(angular.isArray(数据)和&angular.isString(propertyName)){
var结果=[];
var键={};
对于(变量i=0;i
{{s}
-
{{u.username}
{{u.status}}
筛选器转储:{{filtered}}
能否提供相关的代码片段?您的代码片段工作正常。你到底想要什么?请在问题中包含相关代码。当我第一次点击ex.julio时,问题应该是自包含的。是的,这很好,但是点击“创建”,我应该只看到:julio created。除了用户之外,我很高兴能帮助您
<!DOCTYPE html>
<html ng-app="app">
<head>
<style>
li {outline: 2px solid gray; padding: 5px; list-style: none;}
</style>
<script data-require="angular.js@1.3.0-beta.5" data-semver="1.3.0-beta.5" src="https://code.angularjs.org/1.3.0-beta.5/angular.js"></script>
<script>
'use strict'
angular.module('app', [])
.controller('Ctrl', function ($scope) {
$scope.users = [
{'username': 'julio', 'status': 'created'},
{'username': 'julio', 'status': 'running'},
{'username': 'phillip', 'status': 'running'},
{'username': 'mats', 'status': 'created'}
];
$scope.filtered = [];
$scope.optionProp = [];
$scope.includeItem = function(item, prop) {
var idx = $scope.filtered.indexOf(item);
if (idx > -1) {
$scope.filtered.splice(idx, 1);
var idy = $scope.optionProp.indexOf(prop);
$scope.optionProp.splice(idy, 1);
} else {
$scope.filtered.push(item);
$scope.optionProp.push(prop);
}
}
$scope.filterFn = function(item) {
if ($scope.filtered.length > 0) {// first time
console.info( $scope.filtered.length > 0 );
for (var i = 0; i < $scope.optionProp.length; i++) {
if ($scope.filtered.indexOf(item[$scope.optionProp[i]]) < 0){
console.warn( $scope.filtered.indexOf(item.username ) );
return;
}
}
}
console.log( item );
return item;
}
})
.filter("unique", function () {
return function (data, propertyName) {
if (angular.isArray(data) && angular.isString(propertyName)) {
var results = [];
var keys = {};
for (var i = 0; i < data.length; i++) {
var val = data[i][propertyName];
if (angular.isUndefined(keys[val])) {
keys[val] = true;
results.push(val);
}
}
return results;
} else {
return data;
}
}
});
</script>
</head>
<body ng-controller="Ctrl">
<div ng-repeat="user in users | unique:'username'">
<input id="inputuser" type="checkbox" ng-model="input.chkUser" ng-click="includeItem(user, 'username')" /> {{user}}
</div>
<hr />
<div ng-repeat="s in users | unique:'status'">
<input id="inputstatus" type="checkbox" ng-model="input.chkStatus" ng-click="includeItem(s, 'status')"/> {{s}}
</div>
<ul>
<li ng-repeat="u in users | filter:filterFn">
<p>{{u.username}}</p>
<p>{{u.status}}</p>
</li>
</ul>
Filter dump: {{filtered}}
</body>
</html>