Sapper 不断收到客户关于“this”关键字的警告？

Question

不断从客户端收到此警告，但不完全确定可能是什么原因造成的。任何正确方向的指导都会非常有帮助！

• client

The 'this' keyword is equivalent to 'undefined' at the top level of an ES module, and has been rewritten

1: var __extends = (this && this.__extends) || (function () {

                    ^

2:     var extendStatics = function (d, b) {

3:         extendStatics = Object.setPrototypeOf ||

The 'this' keyword is equivalent to 'undefined' at the top level of an ES module, and has been rewritten

1: var __extends = (this && this.__extends) || (function () {

                            ^

2:     var extendStatics = function (d, b) {

3:         extendStatics = Object.setPrototypeOf ||

The 'this' keyword is equivalent to 'undefined' at the top level of an ES module, and has been rewritten

1: var __assign = (this && this.__assign) || function () {

                   ^

2:     __assign = Object.assign || function(t) {

3:         for (var s, i = 1, n = arguments.length; i < n; i++) {

The 'this' keyword is equivalent to 'undefined' at the top level of an ES module, and has been rewritten

1: var __assign = (this && this.__assign) || function () {

                           ^

2:     __assign = Object.assign || function(t) {

3:         for (var s, i = 1, n = arguments.length; i < n; i++) {

Answer 1

我能够通过将以下代码添加到我的客户端汇总包来解决这个问题。context: "window"这是与此错误相关的文档：https&nbsp;:&nbsp;//rollupjs.org/guide/en/#error-this-is-undefined