在angularjs中有三種方法實作自定義service
下面執行個體是用三種自定義的service方法實作數的平方
第一種:
var app = angular.module("app",[]);
app.service("cubeService",function () {
this.cube = function (a) {
return a*a*a;
}
});
app.controller("ctrl",function ($scope,cubeService) {
$scope.num = 5;
$scope.result = cubeService.cube($scope.num);
$scope.cube = function () {
$scope.result = cubeService.cube($scope.num);
}
})
第二種是用factory:
var app = angular.module("app",[]);
//增加依賴注入
app.value("cubeInput",2); //設定初始值
app.factory("mainService",function () {
var factory = {};
factory.cube = function (a,b,c) {
return a*b*c;
};
return factory;
});
app.service("cubeService",function (mainService) {
this.cube = function (a) {
return mainService.cube(a,a,a);
}
});
app.controller("ctrl",function ($scope,cubeService,cubeInput) {
$scope.num = cubeInput;
$scope.result = cubeService.cube($scope.num);
$scope.cube = function () {
$scope.result = cubeService.cube($scope.num);
}
});
第三種使用provider:
app.value("cubeInput",4);
app.config(function ($provide) {
$provide.provider("mainService",function () {
this.$get = function () {
var factory = {};
factory.cube = function (a,b,c) {
return a*b*c;
};
return factory;
}
});
});
app.service("cubeServicc",function (mainService) {
this.cube = function (a) {
return mainService.cube(a,a,a);
}
});
app.controller("ctrl",function ($scope,cubeInput,cubeServicc) {
$scope.num = cubeInput;
$scope.result = cubeServicc.cube($scope.num);
$scope.cube = function () {
$scope.result = cubeServicc.cube($scope.num);
}
})
源代碼下載下傳位址https://download.csdn.net/download/xiaorumo/10841059