Writing files in Go: Smart Go

This video tutorial covers the basics of writing files in Go, including creating new files, writing text and bytes, and appending to existing files. It explains the use of the OS and buff IO modules for file operations, highlighting methods like writeString and write. The tutorial also discusses the implications of overwriting files and introduces buffered IO for controlled writing. Future topics will include handling binary data in Go.

What function is used to create a new file in Go?

• os.AppendFile

• os.ReadFile

• os.Create

• os.Open

Which method is used to write text to a file in Go?

• WriteString

• WriteData

• WriteBytes

• WriteText

What does the 'os.WriteFile' function do?

• Appends data to a file

• Overwrites a file with new data

• Reads data from a file

• Deletes a file

How can you append data to an existing file in Go?

• Use os.ReadFile with append mode

• Use os.OpenFile with O_APPEND constant

• Use os.WriteFile with append mode

• Use os.Create with append mode

What is the purpose of flushing the write buffer in buffered IO operations?

• To close the file

• To read data from the buffer

• To commit the written data to the file

• To clear the buffer