Я новичок в Angular 2. How to check if a variable exists or defined in JavaScript; Previous Page Next Page. Ajay Bijli Market, 2865-66. AngularJS It's only when it gets down to the angular2-jwt-related stuff that it errors out that require() is not defined: Is this some kind of incompatibility between the compiled Javascript that comes in the node package and my grunt setup? RequireJS He has got his skills in working on technologies like .NET Core, ADO.NET, AJAX, Angular, AngularJS, ASP.NET, ASP.NET MVC, Bootstrap, C#, CSS, Entity Framework, Express.js, GraphQL, HTML, JavaScript, JQuery, JSON, LINQ, Microsoft Office, MongoDB, MySQL, Node.js, PostgreSQL, SQL, SQL Server, TypeORM, TypeScript, Visual Basic .NET, Web API. This usually happens because your JavaScript environment doesn’t understand how to handle the require() function reference. require is not defined 回答者m59给出了该问题的处理方式：. This usually indicates that jQuery is not loaded and JavaScript does not recognize the $. javascript - Require is not defined in AngularJS - Stack Overflow Angular — Using RequireJs (AMD) (Example) - Coderwall require is not defined angularjs - hacerem.net Shahganj, S.N. require is not defined angularjs - berksmedicalmassage.com