详解angularjs的数组传参方式的简单实现
(编辑:jimmy 日期: 2024/11/21 浏览:3 次 )
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var app2 = mqyJs.applicationCreate([{ name: '直接传入SCOPE' }, '$hello', '$world', function($scope, $hello, $world) { return $scope.name + ": " + $hello.name + $world.name; }]);
核心部分如下:
//框架开设 var mqyJs = { //服务注册 servicesList: {}, servicesRegister: function(name, value) { this.servicesList[name] = value; }, //应用创建 applicationList: [], applicationCreate: function(_opts, _args) { if (!_args) { _args = _opts; _opts = {} } _opts.scope = _opts.scope || { name: 'SCOPE没有设置' }; if (!(_args instanceof Array)) { _args = ['$scope', _args]; } if (typeof _args[_args.length - 1] != 'function') { throw new Error('参数中没有指定运行函数'); } _args.map((arg, index) => { if (typeof arg == 'string') { if (arg === '$scope') { _args[index] = _opts.scope; } else { if (!!arg && !(arg in this.servicesList)) { throw new Error('插件:' + arg + ' 还没有注册'); } _args[index] = this.servicesList[arg]; } } }); return this.applicationList[this.applicationList.push({ run: function(callback) { if (typeof callback != 'function') { callback = function(_opts) { return _opts; } } return callback(_args[_args.length - 1].apply(null, _args)); } }) - 1]; } }; //框架结束
通过 servicesRegister,可以注册 服务,比如 angularjs 的 $http;
//插件开始 mqyJs.servicesRegister('$hello', { name: '你好' }); mqyJs.servicesRegister('$world', { name: '世界' }); mqyJs.servicesRegister('$china', { name: '中国' }); //插件结束
最终,对所有注册的应用,自动执行
/** * 初始化完成后系统自动运行 * 比如网页中 放到 window.onload */ mqyJs.applicationList.map(function(app, index) { console.log('自动调用 -> APP #' + index + ' -> ' + app.run()); });
尝试跑一下代码,能自动识别参数类型,完美执行。
不传入 $scope 时,程序会自动创建一个 $scope。
//演示代码 开始 var app = mqyJs.applicationCreate(['$scope', '$hello', '$china', function($scope, $hello, $china) { return $scope.name + ": " + $hello.name + $china.name; }]); var app2 = mqyJs.applicationCreate([{ name: '直接传入SCOPE' }, '$hello', '$world', function($scope, $hello, $world) { return $scope.name + ": " + $hello.name + $world.name; }]); var app3 = mqyJs.applicationCreate([{ name: 'world也直接传入' }, '$hello', { name: '地球' }, function($scope, $hello, $world) { return $scope.name + ": " + $hello.name + $world.name; }]); var app4 = mqyJs.applicationCreate(function($scope) { return $scope.name; }); var opts = { scope: { name: '自定义SCOPE' } }; var app5 = mqyJs.applicationCreate(opts, function($scope) { return $scope.name; }); app4.run(function(result) { console.log('手动调用 -> RESULT -> ' + result); }); //演示代码 结束
为了方便测试,再把代码重新写一遍,直接复制下面的代码到 浏览器控制台即可测试
//框架开设 var mqyJs = { //服务注册 servicesList: {}, servicesRegister: function(name, value) { this.servicesList[name] = value; }, //应用创建 applicationList: [], applicationCreate: function(_opts, _args) { if (!_args) { _args = _opts; _opts = {} } _opts.scope = _opts.scope || { name: 'SCOPE没有设置' }; if (!(_args instanceof Array)) { _args = ['$scope', _args]; } if (typeof _args[_args.length - 1] != 'function') { throw new Error('参数中没有指定运行函数'); } _args.map((arg, index) => { if (typeof arg == 'string') { if (arg === '$scope') { _args[index] = _opts.scope; } else { if (!!arg && !(arg in this.servicesList)) { throw new Error('插件:' + arg + ' 还没有注册'); } _args[index] = this.servicesList[arg]; } } }); return this.applicationList[this.applicationList.push({ run: function(callback) { if (typeof callback != 'function') { callback = function(_opts) { return _opts; } } return callback(_args[_args.length - 1].apply(null, _args)); } }) - 1]; } }; //框架结束 //插件开始 mqyJs.servicesRegister('$hello', { name: '你好' }); mqyJs.servicesRegister('$world', { name: '世界' }); mqyJs.servicesRegister('$china', { name: '中国' }); var app = mqyJs.applicationCreate(['$scope', '$hello', '$china', function($scope, $hello, $china) { return $scope.name + ": " + $hello.name + $china.name; }]); var app2 = mqyJs.applicationCreate([{ name: '直接传入SCOPE' }, '$hello', '$world', function($scope, $hello, $world) { return $scope.name + ": " + $hello.name + $world.name; }]); var app3 = mqyJs.applicationCreate([{ name: 'world也直接传入' }, '$hello', { name: '地球' }, function($scope, $hello, $world) { return $scope.name + ": " + $hello.name + $world.name; }]); var app4 = mqyJs.applicationCreate(function($scope) { return $scope.name; }); var opts = { scope: { name: '自定义SCOPE' } }; var app5 = mqyJs.applicationCreate(opts, function($scope) { return $scope.name; }); app4.run(function(result) { console.log('手动调用 -> RESULT -> ' + result); }); //插件结束 mqyJs.applicationList.map(function(app, index) { console.log('自动调用 -> APP #' + index + ' -> ' + app.run()); });
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