util.string.byte

local ... = util.string.byte(
    input,
    start_at = 1,
    end_at = -1
)

Type	Name	Description
`string`	input	String to convert
`int`	start_at	Character position where extraction begins - negative counts from end
`int`	end_at	Character position where extraction ends - negative counts from end

Type	Name	Description
`any`	...	Numeric byte values for the specified range

Get the byte value of the first character

local byte = util.string.byte("A")

core.engine.print("info", byte) -- 65

Get the byte value at a specific position

local byte = util.string.byte("ABC", 2)

core.engine.print("info", byte) -- 66

Get multiple byte values at once

local b1, b2, b3 = util.string.byte("ABC", 1, 3)

core.engine.print("info", b1, b2, b3) -- 65  66  67

Use a negative index to read from the end

local last = util.string.byte("Hello", -1)

core.engine.print("info", last) -- 111 (character 'o')