![]() ![]() So make sure to call Flush() after the completed write to save the remaining data to the file. Its writing functions do not save data directly to the file but keep it until the buffer underneath is full (default size is 4096 bytes) or the Flush() method is called. To do this, we can use bufio.Writer structure. ![]() Each write is a costly system call, and if you don’t need immediate file updates, it is a better idea to group these small writes into one. Read and Write take their byte counts from the length of the argument slice. If you frequently write a small amount of data to a file, it can hurt the performance of your program. The files data can then be read into a slice of bytes. Package main import ( "log" "os" ) var bytes = byte Write to a file using a buffered writer ![]()
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