Using dynamic imports to enhance code by adding the `.at()` function can lead to errors in the process

Below is the content of my .tsconfig configuration file:

{
  "compilerOptions": {
    "target": "es6",
    "baseUrl": "./src",
    "lib": ["dom", "dom.iterable", "esnext"],
    "allowJs": true,
    "skipLibCheck": true,
    "esModuleInterop": true,
    "allowSyntheticDefaultImports": true,
    "strict": true,
    "forceConsistentCasingInFileNames": true,
    "module": "esnext",
    "moduleResolution": "node",
    "resolveJsonModule": true,
    "isolatedModules": true,
    "noEmit": true,
    "jsx": "react",
    "strictNullChecks": false,
    "sourceMap": true,
    "inlineSources": true,
    "sourceRoot": "/"
  },
  "include": ["src"],
  "exclude": ["node_modules"]
}

When using dynamic imports, the .at() method gets added to the code. This results in an error for browsers that do not support this method, displaying as 

u.split(...).at is not a function
. Is there a way to resolve this issue by adjusting the settings in the .tsconfig file?

typescriptcreate-react-appes6-modulespolyfills

Answer №1

Ultimately, the issue did not revolve around utilizing dynamic imports. It turned out that an external module had not been properly transpiled to ES6, causing a problem that only surfaced after breaking the code into smaller chunks. The solution was found in downgrading that particular external module.

The fact that the application functioned perfectly fine prior to implementing code splitting remains a perplexing mystery.

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