strconv API Reference

Go strconv package — conversions between strings and basic types.

By EZ4Code TeamLast updated: 2026-08-01

strconv

Package strconv implements conversions to and from string representations of basic types.

strconv.Atoi(s string) (int, error)

Convert string to int. Returns error if s is not a valid integer.

Returns: (int, error)

strconv.Itoa(i int) string

Convert int to its decimal string representation.

Returns: string

strconv.ParseFloat(s string, bitSize int) (float64, error)

Convert string to a floating-point number with the precision specified by bitSize (32 or 64).

Returns: (float64, error)

strconv.ParseInt(s string, base int, bitSize int) (int64, error)

Convert string in the given base (0, 2..36) to a signed integer.

Returns: (int64, error)

strconv.FormatFloat(f float64, fmt byte, prec, bitSize int) string

Convert float to string. fmt is one of 'b','e','E','f','g','G','x','X'.

Returns: string

strconv.FormatInt(i int64, base int) string

Convert int64 to string in the given base (2..36).

Returns: string