You will be provided a file path for input I, a file path for output O, a string S, and a string T. Read the contents of I, replacing each occurrence of S with T and write the resulting information to file O. You should replace O if it already exists.
Cannot find name 'require'. Do you need to install type definitions for node? Try `npm i @types/node` and then add `node` to the types field in your tsconfig.