The os.SeekSet constant is used as the ‘whence’ parameter in the Seek method of an os.File object. It represents the beginning of a file, so when used with Seek it sets the offset to ‘offset’ bytes from the beginning of the file.
Here’s an example:
file, err := os.Open("myfile.txt")
if err != nil {
log.Fatal(err)
}
defer file.Close()
offset, err := file.Seek(0, os.SeekSet)
if err != nil {
log.Fatal(err)
}
fmt.Println("Offset:", offset) // prints "Offset: 0"
In this example, we open a file called “myfile.txt” and use the Seek method to set the offset to 0 bytes from the beginning of the file. The returned value is printed out for confirmation.
