详解AngularJS 模块化

更新时间：2020-05-17 20:48:01 作者：startmvc

学习要点：控制器模块化指令模块化过滤器模块化服务模块化定义值模块化使用模块工作第

学习要点：

控制器模块化
指令模块化
过滤器模块化
服务模块化
定义值模块化
使用模块工作

第一步：创建一个模块


// function : define module named exampleApp
// param detail :
// param one : module name
// param two : relay on modules collection
// parms three : config information
var myApp = angular.module("exampleApp", ["exampleApp.Controllers", ["exampleApp.Controllers", "exampleApp.Filters", "exampleApp.Directives", "exampleApp.Service", "exampleApp.Values"])

在视图中应用模块


<!-- use module -->
<html ng-app="exampleApp">
 ...
</html>

第二步：定义值


var valueModule = angular.module("exampleApp.Values", [])
// defind value
var now = new Date();
valueModule.value("nowValue", now);

第三步：定义服务


var serviceModule = angular.module("exampleApp.Service", [])
// function : define a service named days
serviceModule.service("days", function (nowValue) {
 this.today = nowValue.getDay();
 this.tomorrow = this.today + 1;
 })

第四步：定义控制器


var controllerModule = angular.module("exampleApp.Controllers", []);
// function : define a controller named dayCtrl
// the controller include two param:
// param detail:
// param one : name of controller
// param two : a factory function 
// the param $scope of factory function show information to view
controllerModule.controller("dayCtrl", function ($scope, days) { 
 // days : use custom service
 // today is ...
 $scope.day = days.today;
 // tomorrow is ...
 $scope.tomorrow = 7;
})

将控制器应用于视图


<!-- use controller -->
 <div class="panel" ng-controller="dayCtrl">
 <div class="panel-header">
 <h3>Angular App</h3>
 </div>
 <!-- if the day is undefined, show unknow -->
 <!-- use filter and data binding -->
 <h4>Today is {{ day || "unknow" }}</h4>
 <h4>Tomorrow is {{ tomorrow || "unknow" }}</h4>
 </div>

第五步：定义指令


var directiveModule = angular.module("exampleApp.Directives", []);
// function : define a directive named highlight
// it accepts two param
// param one : the name of directive 
// param two : a factory method
directiveModule.directive("highlight", function ($filter) {

 // get the filter function
 var dayFilter = $filter("dayName");

 // param detail:
 // scope : view scope of action
 // element : the element which uses the custom directive
 // attrs : the attrs of the element
 return function (scope, element, attrs) {
 // console.log(dayFilter(scope.day));
 if (dayFilter(scope.day) == attrs['highlight']) {
 element.css("color", 'red');
 }
 }
 })

将指令应用于视图


...
<h4 highlight="Saturday">Today is {{ day || "unknow" | dayName }}</h4>
...

第六步：定义过滤器


var filterModule = angular.module("exampleApp.Filters", []);
// function : define a fitler named dayName
filterModule.filter('dayName', function () {

 var dayNames = ['Sunday', "Monday", 'Tuesday', 'Wednesday', 'Thurday', 'Friday', 'Saturday'];
 return function (input) {
 // input is the value of data binding
 return angular.isNumber(input % 7) ? dayNames[input % 7] : input % 7;
 };
})

将过滤器应用于视图


<!-- 用 | 分开 -->
<h4 highlight="Saturday">Today is {{ day || "unknow" | dayName }}</h4>
<h4>Tomorrow is {{ tomorrow || "unknow" | dayName }}</h4>

最后，下面是完整的代码：

文件一：example.html


<!DOCTYPE>
<!-- use module -->
<html ng-app="exampleApp">
<head>
 <title>Angluar test</title>
 <meta charset="utf-8"/>
 <link rel="stylesheet" type="text/css" href="css/bootstrap.min.css" rel="external nofollow" >
 <link rel="stylesheet" type="text/css" href="css/bootstrap-theme.min.css" rel="external nofollow" >
</head>
<body>
 <!-- use controller -->
 <div class="panel" ng-controller="dayCtrl">
 <div class="panel-header">
 <h3>Angular App</h3>
 </div>
 <!-- if the day is undefined, show unknow -->
 <!-- use defined directive "highlight" -->
 <!-- use filter and data binding -->
 <h4 highlight="Saturday">Today is {{ day || "unknow" | dayName }}</h4>
 <h4>Tomorrow is {{ tomorrow || "unknow" | dayName }}</h4>
 </div>
<script type="text/javascript" src="js/angular.min.js"></script>
<script type="text/javascript" src="values/exampleValue.js"></script>
<script type="text/javascript" src="controllers/exampleController.js"></script>
<script type="text/javascript" src="filters/exampleFilter.js"></script>
<script type="text/javascript" src="directives/exampleDirective.js"></script>
<script type="text/javascript" src="services/exampleService.js"></script>
<script type="text/javascript">
// function : define module named exampleApp
// param detail :
// param one : module name
// param two : relay on modules collection
// parms three : config information
var myApp = angular.module("exampleApp", ["exampleApp.Controllers", "exampleApp.Filters", "exampleApp.Directives", "exampleApp.Service", "exampleApp.Values"])
</script>
</body>
</html>

文件二：services/exampleService.js


var serviceModule = angular.module("exampleApp.Service", [])
// function : define a service named days
serviceModule.service("days", function (nowValue) {
 this.today = nowValue.getDay();
 this.tomorrow = this.today + 1;
 })

文件三：values/exampleValue.js


var valueModule = angular.module("exampleApp.Values", [])
// defind value
var now = new Date();
valueModule.value("nowValue", now);

文件四：directives/exampleDirective.js


var directiveModule = angular.module("exampleApp.Directives", []);
// function : define a directive named highlight
// it accepts two param
// param one : the name of directive 
// param two : a factory method
directiveModule.directive("highlight", function ($filter) {

 // get the filter function
 var dayFilter = $filter("dayName");

 // param detail:
 // scope : view scope of action
 // element : the element which uses the custom directive
 // attrs : the attrs of the element
 return function (scope, element, attrs) {
 // console.log(dayFilter(scope.day));
 if (dayFilter(scope.day) == attrs['highlight']) {
 element.css("color", 'red');
 }
 }
 })

文件五：controllers/exampleController.js


var controllerModule = angular.module("exampleApp.Controllers", []);
// function : define a controller named dayCtrl
// the controller include two param:
// param detail:
// param one : name of controller
// param two : a factory function 
// the param $scope of factory function show information to view
controllerModule.controller("dayCtrl", function ($scope, days) { // days : use custom service
 // today is ...
 $scope.day = days.today;
 // tomorrow is ...
 $scope.tomorrow = days.tomorrow;
})

文件六：filters/exampleFilter.js


var filterModule = angular.module("exampleApp.Filters", []);
// function : define a fitler named dayName
filterModule.filter('dayName', function () {

 var dayNames = ['Sunday', "Monday", 'Tuesday', 'Wednesday', 'Thurday', 'Friday', 'Saturday'];
 return function (input) {
 // input is the value of data binding
 return angular.isNumber(input % 7) ? dayNames[input % 7] : input % 7;
 };
})

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。