Writes a slice of bytes as the new contents of a file.
This function will create a file if it does not exist, and will entirely replace its contents if it does.
This function is an async version of
An error will be returned in the following situations:
- The file’s parent directory does not exist.
- The current process lacks permissions to write to the file.
- Some other I/O error occurred.
use async_std::fs; fs::write("a.txt", b"Hello world!").await?;