printf
- printf(format, arguments…)
- golang’s printf format
- if format is not given, will default to string
- format specifiers:
- %v : formats the value in a default format
- %d : formats decimal integers
- %f : formats the floating-point numbers
- %g : formats the floating-point numbers and removes trailing zeros
- %b : formats base 2 numbers
- %o : formats base 8 numbers
- %t : formats true or false values
- %s : formats string values
printf("%d", 2) // prints 2 as a string to traces
printf(2) // ERROR: expected string but int64 given
printf("2") // prints the string 2 to traces