使用Angular Cli创建Angular应用程序时会自动生成polyfills.ts文件.任何人都可以解释一下Angular应用程序中polyfills.ts文件的用途.
我在使用Angular CLI创建新组件时遇到了一个奇怪的错误,当我使用ng g c navbar它时抛出错误:
core_1.PriorityQueue is not a constructor
TypeError: core_1.PriorityQueue is not a constructor
at new TaskScheduler (/home/praveen/Desktop/Angular_Projects/a2website/node_modules/@angular-devkit/schematics/src/engine/task.js:20:23)
at SchematicEngine.createContext (/home/praveen/Desktop/Angular_Projects/a2website/node_modules/@angular-devkit/schematics/src/engine/engine.js:81:31)
at SchematicImpl.call (/home/praveen/Desktop/Angular_Projects/a2website/node_modules/@angular-devkit/schematics/src/engine/schematic.js:35:38)
at Promise (/home/praveen/Desktop/Angular_Projects/a2website/node_modules/@angular/cli/tasks/schematic-run.js:73:23)
at new Promise (<anonymous>)
at Class.run (/home/praveen/Desktop/Angular_Projects/a2website/node_modules/@angular/cli/tasks/schematic-run.js:72:16)
at Class.run (/home/praveen/Desktop/Angular_Projects/a2website/node_modules/@angular/cli/commands/generate.js:161:33)
at resolve (/home/praveen/Desktop/Angular_Projects/a2website/node_modules/@angular/cli/ember-cli/lib/models/command.js:261:20)
at new Promise (<anonymous>)
at Class.validateAndRun (/home/praveen/Desktop/Angular_Projects/a2website/node_modules/@angular/cli/ember-cli/lib/models/command.js:240:12)
任何人都可以帮助我吗？.提前谢谢.