Uncaught TypeError: next is not a function about echo HOT 3 CLOSED

Uncaught TypeError: next is not a function

window.Vue.http.interceptors.push((request, next) => {
    request.headers['X-CSRF-TOKEN'] = Laravel.csrfToken;

    next();
});

Vue.http.headers.common['X-CSRF-TOKEN'] = document.querySelector('#token').getAttribute('value');

/home/forge/default
└── [email protected]  invalid

npm WARN optional Skipping failed optional dependency /chokidar/fsevents:
npm WARN notsup Not compatible with your operating system or architecture: [email protected]