Similar to the io.ReadAll() function in the previous example, io.ReadFile() will read all the bytes in a file and return a byte slice. The primary difference between the two is that io.ReadFile() expects a file path, not a file object that has already been opened. The io.ReadFile() function will take care of opening, reading, and closing the file. You just provide a filename and it provides the bytes. This is often the quickest and easiest method to load file data.
While this method is very convenient, it has limitations; because it reads the entire file directly to memory, very large files may exhaust a system's memory limit:
package main import ( "io/ioutil" "log" ) func main() { // Read file to byte ...
