Create a function that can accept either no parameters or one parameter depending on the input parameter provided

Do you think there is a more efficient way to write this code?

The function Z can be called with either one parameter or with no parameters. If the parameter Y is passed in, then the function z(y) is returned, otherwise just run the function z()

  async x (y?: string) {
    if(y) {
      return z(y)
    } else {
      return z()
    }
  }

Answer №1

  async foo (bar?: string) {
      return baz(bar || undefined);
  }

When you provide undefined as an argument to a function, it essentially means no argument was passed at all.

(I conceived this solution within the realm of JavaScript; while I believe it should translate to TypeScript without any issues, there may be nuances to consider)

Answer №2

const loadData = async (data) => {
     return fetchData( data ?? undefined)
}

This function is designed to handle the task effectively.

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