API strbyte

Returns the numerical code of a character in a string. indexByte = string.byte(s [, index[, endIndex]]) indexByte = strbyte(s [, index[, endIndex]])

• s [, index[, endIndex]]
• s: - The string to get the numerical code from
• index: - Optional argument specifying the index of the character to get the byte value of
• endIndex: - Optional argument specifying the index of the last character to return the value of

• indexByte: - The byte value of the character at the specified position or nil if the index is invalid

> = string.byte("ABCDE") -- no index, so the first character 65 > = string.byte("ABCDE",1) -- indexes start at 1 65 > = string.byte("ABCDE",0) -- we're not using C > = string.byte("ABCDE",100) -- index out of range, no value returned > = string.byte("ABCDE", 1, 3) 65 66 67

• The first valid index is 1.
• The last valid index is the length of the string.