ASCII Engine - JavaScript Made Easy: Free JavaScripts Tutorials Example Code

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JavaScript Basics

Inserting Javascript

Complete Tutorial

Advance DHTML Tutorial

ASCII Engine

Enter any keyboard character and the Ascii Engine outputs the character's equivalent in Ascii Decimal, Ascii Hex, and even binary.

Insert into <HEAD>

<SCRIPT LANGUAGE="JavaScript">

<!-- Begin
binary_numbers = new Array("0000", "0001", "0010", "0011", "0100", "0101",
"0110", "0111", "1000", "1001", "1010", "1011", "1100", "1101", "1110", "1111");

function toBinary(High, Low) {
var hiHex = "ABCDEF";
if (Low < 10 ) {
LowNib = Low;
}
else {
LowNib = 10 + hiHex.indexOf(Low);
}
if (High  < 10 ) {
HighNib = High;
}
else {
HighNib = 10 + hiHex.indexOf(High);
}
eight_bits = binary_numbers[HighNib] + " " + binary_numbers[LowNib];
return eight_bits;
}
function Dec2Hex(Decimal) {
var hexChars = "0123456789ABCDEF";
var a = Decimal % 16;
var b = (Decimal - a)/16;
hex = "" + hexChars.charAt(b) + hexChars.charAt(a);
L = hexChars.charAt(a);
H = hexChars.charAt(b);
return hex;
}
var symbols = " !\"#$%&'()*+'-./0123456789:;<=>?@";
function toAscii ()  {
var loAZ = "abcdefghijklmnopqrstuvwxyz";
symbols+= loAZ.toUpperCase();
symbols+= "[\\]^_`";
symbols+= loAZ;
symbols+= "{|}~";
var loc;
loc = symbols.indexOf(document.asciiform.Input.value);
if (loc >-1) {
Ascii_Decimal = 32 + loc;
return (32 + loc);
   }
return(0);  // If not in range 32-126 return ZERO
}
function getAscii(some_value) {
document.asciiform.toDec.value = toAscii();
document.asciiform.toHex.value = Dec2Hex(toAscii());
document.asciiform.binary.value = toBinary(H, L);
}
//  End -->
</script>

Insert into <BODY>

Other Options