javascript - 如何检查缩小是否出错？

Question

我的代码中有一个 resolve，它在本地运行得非常好，所有测试也都通过了。然而，缩小代码似乎在这里引起了一些问题。

当我暂存代码然后在本地运行它时，它会导致与缩小代码相同的问题。解析 block 不再做它的工作。

有没有办法将缩小后的代码与实际代码进行比较以找出差异？

.state('index', {
          url: '/',
          resolve: {
            trans: ['resolveService', function(resolveService) {
              resolveService.languageResolve('main', {});
            }]
          },
          controller: 'IndexCtrl'
        })
        .state('main', {
          url: '/{language:[a-z]{2}}',
          templateUrl: 'app/main/main.html',

          controller: 'MainCtrl',
          controllerAs: 'mainCtrl',
          resolve: {
            trans: ['resolveService', '$stateParams', function(resolveService, $stateParams) {
              return resolveService.translateResolve($stateParams);
            }],
            redirect: ['resolveService', function(resolveService) {
              return resolveService.resolveRedirect();
            }]
          }
        })
        .state('main.results', {
          url: '/results/{route:nonURIEncoded}',
          templateUrl: 'app/results/results.wrapper.html',
          controller: 'ResultsCtrl',
          resolve: {
            urlParsed: ['urlParser','$stateParams','$state',function(urlParser,$stateParams,$state){
              return urlParser.parse($stateParams.route).then(function(){ return true },function(err){
                $state.go('main',{
                  language: $stateParams.language
                });
              });
            }]
          },
          controllerAs: 'rc'
        })

Answer 1

如果您在比较原始代码和缩小后的代码时遇到不同的行为，我很确定缩小过程中出了点问题，导致结果不完整或解析错误。您应该检查您的浏览器控制台和您的缩小器日志是否有错误。

此外，正如评论(1、2)中已经指出的那样，您可以漂亮地打印缩小的代码以手动检查差异在哪里。

In Chrome :

Pretty Print JavaScript

The DevTools support prettifying of minified JavaScript to a more readable form. To pretty print:

• Go to the Sources panel and selected your desired script from the scripts list.

• Next, press the "Pretty print" button (marked with curly braces) from the bottom of the DevTools window.

• Your code should now be prettified!

Before

After