Why do i encounter 'this condition will always return false' in typescript?

This error message suggests that, according to TypeScript's type analysis, a particular condition will always evaluate to `false` and is likely an error in your code.

Example:

  let x: number = 5;
  if (typeof x === "string") {
      console.log("X is a string");
  }
  

Solution:

  let x: number | string = 5;
  if (typeof x === "string") {
      console.log("X is a string");
  }