Question

我如何在角度中使用常数，我想通过工厂附加一个恒定值。请检查以下代码

/ * 在app模块中附加常量的工厂 * /

'use strict';
define(['app'], function (app) {
    var traslationParams = ['$resource'];

    var translationFactory = function (resource) {
        return {
            attachTranslator: function (language) {
                var languageFilePath = applicationUrl.clientUrl + '/translation/translation_' + language + '.json';
                resource(languageFilePath).get(function (data) {
                    app.constant('languagePack', data); // registering  constant
                });
            }
        }
    }
    translationFactory.$inject = traslationParams;
    app.factory('translationFactory', translationFactory);
});

// 我正在执行工厂api以使用以下代码注册常量

 app.run([ 'translationFactory',  function ( translationFactory) {

         translationFactory.attachTranslator('da');}]);

// 在控制器中使用常量

var companyController = function (languagePack) {

       scope.languagePack = languagePack;
        console.log(languagePack);
}

但我在控制器中收到错误

Error: [$injector:unpr] Unknown provider: languagePackProvider <- languagePack <- companyController

Answer 1

将languagepack添加为translationFactory属性并将转换输出保存到此属性。通过控制器中的服务进一步引用该属性。

'use strict';
define(['app'], function (app) {
var traslationParams = ['$resource'];

var translationFactory = function (resource) {
    return {
        languagePack: {},
        attachTranslator: function (language) {
            var trans = this;
            var languageFilePath = applicationUrl.clientUrl + '/translation/translation_' + language + '.json';
            resource(languageFilePath).get(function (data) {
                //app.constant('languagePack', data); // registering  constant
trans.languagePack = data
            });
        }
    }
}
translationFactory.$inject = traslationParams;
app.factory('translationFactory', translationFactory);
});



app.run([ 'translationFactory',  function ( translationFactory) {
     translationFactory.attachTranslator('da');}]);



var companyController = function (translationFactory) {
   scope.languagePack = translationFactory.languagePack;
    console.log(scope.languagePack);
}

如何在angularjs中使用常量

1 个答案: