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How to fix the “Element implicitly has an ‘any’ type because type ‘Window’ has no index signature?” error in TypeScript?

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Sometimes, we want to fix the "Element implicitly has an ‘any’ type because type ‘Window’ has no index signature?" error in TypeScript.

In this article, we’ll look at how to fix the "Element implicitly has an ‘any’ type because type ‘Window’ has no index signature?" error in TypeScript.

How to fix the "Element implicitly has an ‘any’ type because type ‘Window’ has no index signature?" error in TypeScript?

To fix the "Element implicitly has an ‘any’ type because type ‘Window’ has no index signature?" error in TypeScript, we can add dynamic properties into the Window interface.

For instance, we write

interface Window {
  [key: string]: any;
}

to add the

[key: string]: any;

index signature so that we can add and use any property in window without compiler errors.

Conclusion

To fix the "Element implicitly has an ‘any’ type because type ‘Window’ has no index signature?" error in TypeScript, we can add dynamic properties into the Window interface.

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