Interesante: Vídeo Tutorial de Javascript, aprende a programar Javascript desde cero.
En esta ocasión traigo dos funciones Javascript que permiten convertir código binario a ASCII y ASCII a código binario, estas funciones fueron creadas por Marshall Brown, así que no me atribuyo ningún mérito al respecto.
Un bit es la unidad elemental de información que utilizan las computadoras y que sólo puede tener dos posibles valores 0 o 1, encendido|apagado, verdadero|falso, abierto|cerrado, un conjunto de 8 bits forman 1 byte por regla general, aunque las computadoras antiguas podían usar bytes de 6, 7, 8 o 9 bits.
Por ejemplo la palabra hola se representa de la siguiente forma, el "-" es para aclarar el conjunto de bytes ...
01101000-01101111-01101100-01100001
h = 01101000 = 8 bits = 1 byte
o = 01101111 = 8 bits = 1 byte
...
La conversión binaria será mostrada aquí.
La conversión ASCII será mostrada aquí.
Código fuente ...
// Conversion from Binary to ASCII or ASCII to Binary // Created by G. Marshall Brown // Copyright 2002 G. Marshall Brown // version 1.0 -- created 4/29/02 // version 1.1 -- modified 12/04/02 Added many characters that weren't in version 1.0. // version XX -- modified --/--/-- // All rights reserved, no modification without prior consent from creator. // Usage is free if Copyright statement remains intact. function dobin(text,sepa) { var letbin = ""; for (i=0; i<text.length;i++) { let = text.substr(i,1); if (i>0) { var sep = sepa; if (i % 10 == 0) { letbin=letbin+'<BR>' } } else { var sep = ""; } //Ascii -- Binary Code if (let == "A") {letbin = letbin + sep + '01000001'} if (let == "B") {letbin = letbin + sep + '01000010'} if (let == "C") {letbin = letbin + sep + '01000011'} if (let == "D") {letbin = letbin + sep + '01000100'} if (let == "E") {letbin = letbin + sep + '01000101'} if (let == "F") {letbin = letbin + sep + '01000110'} if (let == "G") {letbin = letbin + sep + '01000111'} if (let == "H") {letbin = letbin + sep + '01001000'} if (let == "I") {letbin = letbin + sep + '01001001'} if (let == "J") {letbin = letbin + sep + '01001010'} if (let == "K") {letbin = letbin + sep + '01001011'} if (let == "L") {letbin = letbin + sep + '01001100'} if (let == "M") {letbin = letbin + sep + '01001101'} if (let == "N") {letbin = letbin + sep + '01001110'} if (let == "O") {letbin = letbin + sep + '01001111'} if (let == "P") {letbin = letbin + sep + '01010000'} if (let == "Q") {letbin = letbin + sep + '01010001'} if (let == "R") {letbin = letbin + sep + '01010010'} if (let == "S") {letbin = letbin + sep + '01010011'} if (let == "T") {letbin = letbin + sep + '01010100'} if (let == "U") {letbin = letbin + sep + '01010101'} if (let == "V") {letbin = letbin + sep + '01010110'} if (let == "W") {letbin = letbin + sep + '01010111'} if (let == "X") {letbin = letbin + sep + '01011000'} if (let == "Y") {letbin = letbin + sep + '01011001'} if (let == "Z") {letbin = letbin + sep + '01011010'} if (let == "a") {letbin = letbin + sep + '01100001'} if (let == "b") {letbin = letbin + sep + '01100010'} if (let == "c") {letbin = letbin + sep + '01100011'} if (let == "d") {letbin = letbin + sep + '01100100'} if (let == "e") {letbin = letbin + sep + '01100101'} if (let == "f") {letbin = letbin + sep + '01100110'} if (let == "g") {letbin = letbin + sep + '01100111'} if (let == "h") {letbin = letbin + sep + '01101000'} if (let == "i") {letbin = letbin + sep + '01101001'} if (let == "j") {letbin = letbin + sep + '01101010'} if (let == "k") {letbin = letbin + sep + '01101011'} if (let == "l") {letbin = letbin + sep + '01101100'} if (let == "m") {letbin = letbin + sep + '01101101'} if (let == "n") {letbin = letbin + sep + '01101110'} if (let == "o") {letbin = letbin + sep + '01101111'} if (let == "p") {letbin = letbin + sep + '01110000'} if (let == "q") {letbin = letbin + sep + '01110001'} if (let == "r") {letbin = letbin + sep + '01110010'} if (let == "s") {letbin = letbin + sep + '01110011'} if (let == "t") {letbin = letbin + sep + '01110100'} if (let == "u") {letbin = letbin + sep + '01110101'} if (let == "v") {letbin = letbin + sep + '01110110'} if (let == "w") {letbin = letbin + sep + '01110111'} if (let == "x") {letbin = letbin + sep + '01111000'} if (let == "y") {letbin = letbin + sep + '01111001'} if (let == "z") {letbin = letbin + sep + '01111010'} if (let == " ") {letbin = letbin + sep + '00100000'} //Numbers: if (let == "0") {letbin = letbin + sep + '00110000'} if (let == "1") {letbin = letbin + sep + '00110001'} if (let == "2") {letbin = letbin + sep + '00110010'} if (let == "3") {letbin = letbin + sep + '00110011'} if (let == "4") {letbin = letbin + sep + '00110100'} if (let == "5") {letbin = letbin + sep + '00110101'} if (let == "6") {letbin = letbin + sep + '00110110'} if (let == "7") {letbin = letbin + sep + '00110111'} if (let == "8") {letbin = letbin + sep + '00111000'} if (let == "9") {letbin = letbin + sep + '00111001'} //Special Characters: if (let == "!") {letbin = letbin + sep + '00100001'} if (let == """) {letbin = letbin + sep + '00100010'} if (let == "#") {letbin = letbin + sep + '00100011'} if (let == "$") {letbin = letbin + sep + '00100100'} if (let == "%") {letbin = letbin + sep + '00100101'} if (let == "&") {letbin = letbin + sep + '00100110'} if (let == "'") {letbin = letbin + sep + '00100111'} if (let == "(") {letbin = letbin + sep + '00101000'} if (let == ")") {letbin = letbin + sep + '00101001'} if (let == "*") {letbin = letbin + sep + '00101010'} if (let == "+") {letbin = letbin + sep + '00101011'} if (let == ",") {letbin = letbin + sep + '00101100'} if (let == "-") {letbin = letbin + sep + '00101101'} if (let == ".") {letbin = letbin + sep + '00101110'} if (let == "/") {letbin = letbin + sep + '00101111'} if (let == ":") {letbin = letbin + sep + '00111010'} if (let == ";") {letbin = letbin + sep + '00111011'} if (let == "<") {letbin = letbin + sep + '00111100'} if (let == "=") {letbin = letbin + sep + '00111101'} if (let == ">") {letbin = letbin + sep + '00111110'} if (let == "?") {letbin = letbin + sep + '00111111'} if (let == "@") {letbin = letbin + sep + '01000000'} if (let == "[") {letbin = letbin + sep + '01011011'} if (let == "\") {letbin = letbin + sep + '01011100'} if (let == "]") {letbin = letbin + sep + '01011101'} if (let == "^") {letbin = letbin + sep + '01011110'} if (let == "_") {letbin = letbin + sep + '01011111'} if (let == "`") {letbin = letbin + sep + '01100000'} if (let == "{") {letbin = letbin + sep + '01111011'} if (let == "|") {letbin = letbin + sep + '01111100'} if (let == "}") {letbin = letbin + sep + '01111101'} if (let == "~") {letbin = letbin + sep + '01111110'} if (let == "€") {letbin = letbin + sep + '10000000'} if (let == "¡") {letbin = letbin + sep + '10100001'} if (let == "¢") {letbin = letbin + sep + '10100010'} if (let == "£") {letbin = letbin + sep + '10100011'} if (let == "¤") {letbin = letbin + sep + '10100100'} if (let == "¥") {letbin = letbin + sep + '10100101'} if (let == "¦") {letbin = letbin + sep + '10100110'} if (let == "§") {letbin = letbin + sep + '10100111'} if (let == "¨") {letbin = letbin + sep + '10100111'} if (let == "©") {letbin = letbin + sep + '10101001'} if (let == "ª") {letbin = letbin + sep + '10101010'} if (let == "«") {letbin = letbin + sep + '10101011'} if (let == "¬") {letbin = letbin + sep + '10101100'} if (let == "") {letbin = letbin + sep + '10101101'} if (let == "®") {letbin = letbin + sep + '10101110'} if (let == "¯") {letbin = letbin + sep + '10101111'} if (let == "°") {letbin = letbin + sep + '10110000'} if (let == "±") {letbin = letbin + sep + '10110001'} if (let == "²") {letbin = letbin + sep + '10110010'} if (let == "³") {letbin = letbin + sep + '10110011'} if (let == "´") {letbin = letbin + sep + '10110100'} if (let == "µ") {letbin = letbin + sep + '10110101'} if (let == "¶") {letbin = letbin + sep + '10110110'} if (let == "·") {letbin = letbin + sep + '10110111'} if (let == "¸") {letbin = letbin + sep + '10111000'} if (let == "¹") {letbin = letbin + sep + '10111001'} if (let == "º") {letbin = letbin + sep + '10111010'} if (let == "»") {letbin = letbin + sep + '10111011'} if (let == "¼") {letbin = letbin + sep + '10111100'} if (let == "½") {letbin = letbin + sep + '10111101'} if (let == "¾") {letbin = letbin + sep + '10111110'} if (let == "¿") {letbin = letbin + sep + '10111111'} if (let == "À") {letbin = letbin + sep + '11000000'} if (let == "Á") {letbin = letbin + sep + '11000001'} if (let == "Â") {letbin = letbin + sep + '11000010'} if (let == "Ã") {letbin = letbin + sep + '11000011'} if (let == "Ä") {letbin = letbin + sep + '11000100'} if (let == "Å") {letbin = letbin + sep + '11000101'} if (let == "Æ") {letbin = letbin + sep + '11000110'} if (let == "Ç") {letbin = letbin + sep + '11000111'} if (let == "È") {letbin = letbin + sep + '11001000'} if (let == "É") {letbin = letbin + sep + '11001001'} if (let == "Ê") {letbin = letbin + sep + '11001010'} if (let == "Ë") {letbin = letbin + sep + '11001011'} if (let == "Ì") {letbin = letbin + sep + '11001100'} if (let == "Í") {letbin = letbin + sep + '11001101'} if (let == "Î") {letbin = letbin + sep + '11001110'} if (let == "Ï") {letbin = letbin + sep + '11001111'} if (let == "Ð") {letbin = letbin + sep + '11010000'} if (let == "Ñ") {letbin = letbin + sep + '11010001'} if (let == "Ò") {letbin = letbin + sep + '11010010'} if (let == "Ó") {letbin = letbin + sep + '11010011'} if (let == "Ô") {letbin = letbin + sep + '11010100'} if (let == "Õ") {letbin = letbin + sep + '11010101'} if (let == "Ö") {letbin = letbin + sep + '11010110'} if (let == "×") {letbin = letbin + sep + '11010111'} if (let == "Ø") {letbin = letbin + sep + '11011000'} if (let == "Ù") {letbin = letbin + sep + '11011001'} if (let == "Ú") {letbin = letbin + sep + '11011010'} if (let == "Û") {letbin = letbin + sep + '11011011'} if (let == "Ü") {letbin = letbin + sep + '11011100'} if (let == "Ý") {letbin = letbin + sep + '11011101'} if (let == "Þ") {letbin = letbin + sep + '11011110'} if (let == "ß") {letbin = letbin + sep + '11011111'} if (let == "à") {letbin = letbin + sep + '11100000'} if (let == "á") {letbin = letbin + sep + '11100001'} if (let == "â") {letbin = letbin + sep + '11100010'} if (let == "ã") {letbin = letbin + sep + '11100011'} if (let == "ä") {letbin = letbin + sep + '11100100'} if (let == "å") {letbin = letbin + sep + '11100101'} if (let == "æ") {letbin = letbin + sep + '11100110'} if (let == "ç") {letbin = letbin + sep + '11100111'} if (let == "è") {letbin = letbin + sep + '11101000'} if (let == "é") {letbin = letbin + sep + '11101001'} if (let == "ê") {letbin = letbin + sep + '11101010'} if (let == "ë") {letbin = letbin + sep + '11101011'} if (let == "ì") {letbin = letbin + sep + '11101100'} if (let == "í") {letbin = letbin + sep + '11101101'} if (let == "î") {letbin = letbin + sep + '11101110'} if (let == "ï") {letbin = letbin + sep + '11101111'} if (let == "ð") {letbin = letbin + sep + '11110000'} if (let == "ñ") {letbin = letbin + sep + '11110001'} if (let == "ò") {letbin = letbin + sep + '11110010'} if (let == "ó") {letbin = letbin + sep + '11110011'} if (let == "ô") {letbin = letbin + sep + '11110100'} if (let == "õ") {letbin = letbin + sep + '11110101'} if (let == "ö") {letbin = letbin + sep + '11110110'} if (let == "÷") {letbin = letbin + sep + '11110111'} if (let == "ø") {letbin = letbin + sep + '11111000'} if (let == "ù") {letbin = letbin + sep + '11111001'} if (let == "ú") {letbin = letbin + sep + '11111010'} if (let == "û") {letbin = letbin + sep + '11111011'} if (let == "û") {letbin = letbin + sep + '11111100'} if (let == "ý") {letbin = letbin + sep + '11111101'} if (let == "þ") {letbin = letbin + sep + '11111110'} if (let == "ÿ") {letbin = letbin + sep + '11111111'} } binary.innerHTML = letbin return false; } function doasc(text) { if (text.length % 8 != 0) { alert (text + " is not an even binary. You may have missed a digit or maybe added an additional digit/character. Separaters are NOT required here.") return false; last; } var letasc = "" lettot = text.length / 8 j=0 for (i=0; i<lettot;i++) { let = text.substr(j,8); if (let == "01000001") {letasc = letasc + 'A'} if (let == "01000010") {letasc = letasc + 'B'} if (let == "01000011") {letasc = letasc + 'C'} if (let == "01000100") {letasc = letasc + 'D'} if (let == "01000101") {letasc = letasc + 'E'} if (let == "01000110") {letasc = letasc + 'F'} if (let == "01000111") {letasc = letasc + 'G'} if (let == "01001000") {letasc = letasc + 'H'} if (let == "01001001") {letasc = letasc + 'I'} if (let == "01001010") {letasc = letasc + 'J'} if (let == "01001011") {letasc = letasc + 'K'} if (let == "01001100") {letasc = letasc + 'L'} if (let == "01001101") {letasc = letasc + 'M'} if (let == "01001110") {letasc = letasc + 'N'} if (let == "01001111") {letasc = letasc + 'O'} if (let == "01010000") {letasc = letasc + 'P'} if (let == "01010001") {letasc = letasc + 'Q'} if (let == "01010010") {letasc = letasc + 'R'} if (let == "01010011") {letasc = letasc + 'S'} if (let == "01010100") {letasc = letasc + 'T'} if (let == "01010101") {letasc = letasc + 'U'} if (let == "01010110") {letasc = letasc + 'V'} if (let == "01010111") {letasc = letasc + 'W'} if (let == "01011000") {letasc = letasc + 'X'} if (let == "01011001") {letasc = letasc + 'Y'} if (let == "01011010") {letasc = letasc + 'Z'} if (let == "01100001") {letasc = letasc + 'a'} if (let == "01100010") {letasc = letasc + 'b'} if (let == "01100011") {letasc = letasc + 'c'} if (let == "01100100") {letasc = letasc + 'd'} if (let == "01100101") {letasc = letasc + 'e'} if (let == "01100110") {letasc = letasc + 'f'} if (let == "01100111") {letasc = letasc + 'g'} if (let == "01101000") {letasc = letasc + 'h'} if (let == "01101001") {letasc = letasc + 'i'} if (let == "01101010") {letasc = letasc + 'j'} if (let == "01101011") {letasc = letasc + 'k'} if (let == "01101100") {letasc = letasc + 'l'} if (let == "01101101") {letasc = letasc + 'm'} if (let == "01101110") {letasc = letasc + 'n'} if (let == "01101111") {letasc = letasc + 'o'} if (let == "01110000") {letasc = letasc + 'p'} if (let == "01110001") {letasc = letasc + 'q'} if (let == "01110010") {letasc = letasc + 'r'} if (let == "01110011") {letasc = letasc + 's'} if (let == "01110100") {letasc = letasc + 't'} if (let == "01110101") {letasc = letasc + 'u'} if (let == "01110110") {letasc = letasc + 'v'} if (let == "01110111") {letasc = letasc + 'w'} if (let == "01111000") {letasc = letasc + 'x'} if (let == "01111001") {letasc = letasc + 'y'} if (let == "01111010") {letasc = letasc + 'z'} if (let == "00100000") {letasc = letasc + ' '} //Numbers: if (let == "00110000") {letasc = letasc + '0'} if (let == "00110001") {letasc = letasc + '1'} if (let == "00110010") {letasc = letasc + '2'} if (let == "00110011") {letasc = letasc + '3'} if (let == "00110100") {letasc = letasc + '4'} if (let == "00110101") {letasc = letasc + '5'} if (let == "00110110") {letasc = letasc + '6'} if (let == "00110111") {letasc = letasc + '7'} if (let == "00111000") {letasc = letasc + '8'} if (let == "00111001") {letasc = letasc + '9'} //Special Characters: if (let == "00100001") {letasc = letasc + '!'} if (let == "00100010") {letasc = letasc + '"'} if (let == "00100011") {letasc = letasc + '#'} if (let == "00100100") {letasc = letasc + '$'} if (let == "00100101") {letasc = letasc + '%'} if (let == "00100110") {letasc = letasc + '&'} if (let == "00100111") {letasc = letasc + '''} if (let == "00101000") {letasc = letasc + '('} if (let == "00101001") {letasc = letasc + ')'} if (let == "00101010") {letasc = letasc + '*'} if (let == "00101011") {letasc = letasc + '+'} if (let == "00101100") {letasc = letasc + ','} if (let == "00101101") {letasc = letasc + '-'} if (let == "00101110") {letasc = letasc + '.'} if (let == "00101111") {letasc = letasc + '/'} if (let == "00111010") {letasc = letasc + ':'} if (let == "00111011") {letasc = letasc + ';'} if (let == "00111100") {letasc = letasc + '<'} if (let == "00111101") {letasc = letasc + '='} if (let == "00111110") {letasc = letasc + '>'} if (let == "00111111") {letasc = letasc + '?'} if (let == "01000000") {letasc = letasc + '@'} if (let == "01011011") {letasc = letasc + '['} if (let == "01011100") {letasc = letasc + '\'} if (let == "01011101") {letasc = letasc + ']'} if (let == "01011110") {letasc = letasc + '^'} if (let == "01011111") {letasc = letasc + '_'} if (let == "01100000") {letasc = letasc + '`'} if (let == "01111011") {letasc = letasc + '{'} if (let == "01111100") {letasc = letasc + '|'} if (let == "01111101") {letasc = letasc + '}'} if (let == "01111110") {letasc = letasc + '~'} if (let == "10000000") {letasc = letasc + '€'} if (let == "10100001") {letasc = letasc + '¡'} if (let == "10100010") {letasc = letasc + '¢'} if (let == "10100011") {letasc = letasc + '£'} if (let == "10100100") {letasc = letasc + '¤'} if (let == "10100101") {letasc = letasc + '¥'} if (let == "10100110") {letasc = letasc + '¦'} if (let == "10100111") {letasc = letasc + '§'} if (let == "10100111") {letasc = letasc + '¨'} if (let == "10101001") {letasc = letasc + '©'} if (let == "10101010") {letasc = letasc + 'ª'} if (let == "10101011") {letasc = letasc + '«'} if (let == "10101100") {letasc = letasc + '¬'} if (let == "10101101") {letasc = letasc + ''} if (let == "10101110") {letasc = letasc + '®'} if (let == "10101111") {letasc = letasc + '¯'} if (let == "10110000") {letasc = letasc + '°'} if (let == "10110001") {letasc = letasc + '±'} if (let == "10110010") {letasc = letasc + '²'} if (let == "10110011") {letasc = letasc + '³'} if (let == "10110100") {letasc = letasc + '´'} if (let == "10110101") {letasc = letasc + 'µ'} if (let == "10110110") {letasc = letasc + '¶'} if (let == "10110111") {letasc = letasc + '·'} if (let == "10111000") {letasc = letasc + '¸'} if (let == "10111001") {letasc = letasc + '¹'} if (let == "10111010") {letasc = letasc + 'º'} if (let == "10111011") {letasc = letasc + '»'} if (let == "10111100") {letasc = letasc + '¼'} if (let == "10111101") {letasc = letasc + '½'} if (let == "10111110") {letasc = letasc + '¾'} if (let == "10111111") {letasc = letasc + '¿'} if (let == "11000000") {letasc = letasc + 'À'} if (let == "11000001") {letasc = letasc + 'Á'} if (let == "11000010") {letasc = letasc + 'Â'} if (let == "11000011") {letasc = letasc + 'Ã'} if (let == "11000100") {letasc = letasc + 'Ä'} if (let == "11000101") {letasc = letasc + 'Å'} if (let == "11000110") {letasc = letasc + 'Æ'} if (let == "11000111") {letasc = letasc + 'Ç'} if (let == "11001000") {letasc = letasc + 'È'} if (let == "11001001") {letasc = letasc + 'É'} if (let == "11001010") {letasc = letasc + 'Ê'} if (let == "11001011") {letasc = letasc + 'Ë'} if (let == "11001100") {letasc = letasc + 'Ì'} if (let == "11001101") {letasc = letasc + 'Í'} if (let == "11001110") {letasc = letasc + 'Î'} if (let == "11001111") {letasc = letasc + 'Ï'} if (let == "11010000") {letasc = letasc + 'Ð'} if (let == "11010001") {letasc = letasc + 'Ñ'} if (let == "11010010") {letasc = letasc + 'Ò'} if (let == "11010011") {letasc = letasc + 'Ó'} if (let == "11010100") {letasc = letasc + 'Ô'} if (let == "11010101") {letasc = letasc + 'Õ'} if (let == "11010110") {letasc = letasc + 'Ö'} if (let == "11010111") {letasc = letasc + '×'} if (let == "11011000") {letasc = letasc + 'Ø'} if (let == "11011001") {letasc = letasc + 'Ù'} if (let == "11011010") {letasc = letasc + 'Ú'} if (let == "11011011") {letasc = letasc + 'Û'} if (let == "11011100") {letasc = letasc + 'Ü'} if (let == "11011101") {letasc = letasc + 'Ý'} if (let == "11011110") {letasc = letasc + 'Þ'} if (let == "11011111") {letasc = letasc + 'ß'} if (let == "11100000") {letasc = letasc + 'à'} if (let == "11100001") {letasc = letasc + 'á'} if (let == "11100010") {letasc = letasc + 'â'} if (let == "11100011") {letasc = letasc + 'ã'} if (let == "11100100") {letasc = letasc + 'ä'} if (let == "11100101") {letasc = letasc + 'å'} if (let == "11100110") {letasc = letasc + 'æ'} if (let == "11100111") {letasc = letasc + 'ç'} if (let == "11101000") {letasc = letasc + 'è'} if (let == "11101001") {letasc = letasc + 'é'} if (let == "11101010") {letasc = letasc + 'ê'} if (let == "11101011") {letasc = letasc + 'ë'} if (let == "11101100") {letasc = letasc + 'ì'} if (let == "11101101") {letasc = letasc + 'í'} if (let == "11101110") {letasc = letasc + 'î'} if (let == "11101111") {letasc = letasc + 'ï'} if (let == "11110000") {letasc = letasc + 'ð'} if (let == "11110001") {letasc = letasc + 'ñ'} if (let == "11110010") {letasc = letasc + 'ò'} if (let == "11110011") {letasc = letasc + 'ó'} if (let == "11110100") {letasc = letasc + 'ô'} if (let == "11110101") {letasc = letasc + 'õ'} if (let == "11110110") {letasc = letasc + 'ö'} if (let == "11110111") {letasc = letasc + '÷'} if (let == "11111000") {letasc = letasc + 'ø'} if (let == "11111001") {letasc = letasc + 'ù'} if (let == "11111010") {letasc = letasc + 'ú'} if (let == "11111011") {letasc = letasc + 'û'} if (let == "11111100") {letasc = letasc + 'û'} if (let == "11111101") {letasc = letasc + 'ý'} if (let == "11111110") {letasc = letasc + 'þ'} if (let == "11111111") {letasc = letasc + 'ÿ'} if (letasc == "") { alert ("not found") break; } j=j+8 } ascii.innerHTML = letasc return false; }
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