Ways to effectively implement a function type specified in an interface

Consider the following interface:

interface MyProps {
  onEvent: (name: string, data: any) => void;
}

Is there a way to utilize the function type in order to avoid unused parameter errors during compilation?

eventHandler = (name: string, data: any) => {
  console.log(data);
}

I am encountering a complication where I am receiving a compilation error for an unused parameter "name". Removing it would disrupt the underlying type's signature, so is there a workaround for this issue?

I attempted the following approach, but unfortunately it did not work as expected:

eventHandler: MyProps.onEvent = (name, data) => {
  console.log(data);
}

Answer №1

Your syntax is a little off, you should be using ['name']. This type of query is known as an indexed type query

interface MyProps {
    onEvent: (name: string, data: any) => void;
}

let eventHandler: MyProps['onEvent'] = (name, data) => {
    console.log(data);
}

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