javascript - 'book' 已定义但从未使用 MEAN 堆栈 Controller

Question

我在创建变量并在 MEAN 包中使用它时遇到问题。我将其基于作为示例的“文章”包。我在客户端 Controller 中看到的所有内容都是相同的，但我不确定为什么当我尝试在“books”包而不是“articles”包上启动我的应用程序(使用 grunt)时捕获错误。

我还没有实现文章中的所有 Controller ，这可能是一个问题？

当我使用 grunt 启动应用程序时，出现以下错误:“book”已定义，但从未使用过 MEAN 堆栈 Controller

我相信错误出在 Controller 中，但如果您需要查看其他文件，请告诉我。

books.js

//client-side controller

'use strict';

angular.module('mean.books').controller('BooksController', ['$scope', 'Global', 'Books',
  function($scope, Global, Books) {
    $scope.global = Global;
    $scope.package = {
      name: 'books'
    };

    $scope.hasAuthorization = function(book) {
      if (!book || !book.user) return false;
      return $scope.global.isAdmin || book.user._id === $scope.global.user._id;
    };

    $scope.create = function(isValid) {
      if (isValid) {
        var book = new Books({
          title: this.title,
          author: this.author,
          description: this.description,
          seller: this.seller
        });
      /* Not sure if we need this location thing 
        book.$save(function(response) {
          $location.path('books/' + response._id);
        });
      */

        this.title = '';
        this.content = '';
        this.description = '';
        this.seller = ''; // or this.user implement
      } else {
        $scope.submitted = true;
      }
    };

  }
]);

articles.js//这是我所基于的示例

'use strict';

angular.module('mean.articles').controller('ArticlesController', ['$scope', '$stateParams', '$location', 'Global', 'Articles',
  function($scope, $stateParams, $location, Global, Articles) {
    $scope.global = Global;

    $scope.hasAuthorization = function(article) {
      if (!article || !article.user) return false;
      return $scope.global.isAdmin || article.user._id === $scope.global.user._id;
    };

    $scope.create = function(isValid) {
      if (isValid) {
        var article = new Articles({
          title: this.title,
          content: this.content
        });
        article.$save(function(response) {
          $location.path('articles/' + response._id);
        });

        this.title = '';
        this.content = '';
      } else {
        $scope.submitted = true;
      }
    };

    $scope.remove = function(article) {
      if (article) {
        article.$remove(function(response) {
          for (var i in $scope.articles) {
            if ($scope.articles[i] === article) {
              $scope.articles.splice(i, 1);
            }
          }
          $location.path('articles');
        });
      } else {
        $scope.article.$remove(function(response) {
          $location.path('articles');
        });
      }
    };

    $scope.update = function(isValid) {
      if (isValid) {
        var article = $scope.article;
        if (!article.updated) {
          article.updated = [];
        }
        article.updated.push(new Date().getTime());

        article.$update(function() {
          $location.path('articles/' + article._id);
        });
      } else {
        $scope.submitted = true;
      }
    };

    $scope.find = function() {
      Articles.query(function(articles) {
        $scope.articles = articles;
      });
    };

    $scope.findOne = function() {
      Articles.get({
        articleId: $stateParams.articleId
      }, function(article) {
        $scope.article = article;
      });
    };
  }
]);

Answer 1

在 $scope.create 函数中定义了 book

var book = new Books({

并且永远不要使用它。这就是您收到警告的原因。如果您想在开发中跳过 jshint 警告，请使用 grunt -f 或在 grunt 配置中允许未使用的变量(或 .jshintrc 如果您使用它)