I am having trouble locating the name 'React' within the function variable when using Typescript with generic arguments

Is there a way to store a typescript function with generic arguments in a variable?

function identity<T>(arg: T): T {
  return arg;
}

I attempted to do it like this but got an error message saying Cannot find name 'React'

const identity = <T>(arg: T): T => {
    return arg;
}

Answer №1

When encountering the error Cannot find name 'React'., it is due to TypeScript interpreting <T>.. as a React element. You can resolve this issue by simply adding a comma after the generic parameter like so: <T,> instead of just <T>

const identity = <T,>(arg: T): T => {
  return arg;
}

Check out the TypeScript playground for reference

To further streamline your code, you can also include a dummy extends clause such as <T extends {}>, though using <T,> remains the optimal solution.

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