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[Fixed] No index signature with a parameter of type ‘string’ was found on type ‘{}’

Today We are Going To Solve No index signature with a parameter of type ‘string’ was found on type ‘{}’ in reactjs. Here we will Discuss All Possible Solutions and How this error Occurs So let’s get started with this Article.

How to Fix No index signature with a parameter of type ‘string’ was found on type ‘{}’ Error?

  1. How to Fix No index signature with a parameter of type ‘string’ was found on type ‘{}’ Error?

    To Fix No index signature with a parameter of type ‘string’ was found on type ‘{}’ Error just Run this command. By running this command you can get rid of the error. So just try this: this.DNATranscriber[character as keyof typeof DNATranscriber]

  2. No index signature with a parameter of type ‘string’ was found on type ‘{}’

    To Fix No index signature with a parameter of type ‘string’ was found on type ‘{}’ Error just cast the object. You can just cast the object with the proper type instead of any. This will avoid type errors when compiling typescript but it will not help you to keep your code type-safe. You can do jut like this: (this.DNATranscriber as any)[character]; interface DNA { G: "C", C: "G", T: "A", A: "U" } An after it just cast it like given below code. This will remove your error completely. (this.DNATranscriber as DNA)[character];

Solution 1 : Run this command

By running this command you can get rid of the error. So just try this:

this.DNATranscriber[character as keyof typeof DNATranscriber]

Solution 2 : cast the object

You can just cast the object with the proper type instead of any. This will avoid type errors when compiling typescript but it will not help you to keep your code type-safe. You can do jut like this:

(this.DNATranscriber as any)[character];
interface DNA {
    G: "C",
    C: "G",
    T: "A",
    A: "U"
}

An after it just cast it like given below code. This will remove your error completely.

(this.DNATranscriber as DNA)[character];

Solution 3 : define the keyOf Object

Here you have to just define the keyOf Object like given below code. This will remove your error. So just use it like given way:

function getValue(key: keyof User) {
    return user[key]

Conclusion

So these were all possible solutions to this error. I hope your error has been solved by this article. In the comments, tell us which solution worked? If you liked our article, please share it on your social media and comment on your suggestions. Thank you.

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