Fmt Module Documentation

The fmt module provides functions for formatted I/O operations similar to those in the standard Go fmt package.

Functions

print(args...)

Prints the arguments to standard output without a newline.

• args: The objects to print. Each object will be converted to a string.

Returns null.

println(args...)

Prints the arguments to standard output with a newline.

• args: The objects to print. Each object will be converted to a string.

Returns null.

printf(format, args...)

Prints the formatted string to standard output.

• format: A format string.
• args: The objects to format and print.

Returns null.

sprintf(format, args...)

Returns a formatted string.

• format: A format string.
• args: The objects to format.

Returns the formatted string as a string.

scanln()

Reads a line from standard input.

Returns the input as a string.

fprint(IOWriter, args...)

Prints the arguments to standard output without a newline using IOWriter.

• IOWriter: stdlib.IOWriter object.
• args: The objects to format.

fprintln(IOWriter, args...)

Prints the arguments to standard output with a newline using IOWriter.

• IOWriter: stdlib.IOWriter object.
• args: The objects to format.

Returns the formatted string as a string.

Example Usage

import "fmt"

// Print example
fmt.print("Hello, ", "world")

// Println example
fmt.println("Hello, ", "world")

// Printf example
fmt.printf("Hello, %s", "world")

// Sprintf example
formatted_string := fmt.sprintf("Hello, %s", "world")
println(formatted_string)

// Scanln example
input := fmt.scanln()
println("You entered: ", input)

fprint, fprintln Example

import "fmt"
import "colors"
import "os"

fmt.fprint(colors.stdout, "Hello".red, "World".green, "\n")
fmt.fprintln(colors.stderr, "Hello".red, "World".green)
fmt.fprintln(os.stdout, "Hello".red, "World".green, "\n")