JSFiddle - React, Tailwind, and code Playground

by keemor

HTML

<!-- Covert HEX to Ascii -->

JavaScript

function toAscii(valueStr) {
        var symbols = " !\"#$%&'()*+,-./0123456789:;<=>?@";
        var loAZ = "abcdefghijklmnopqrstuvwxyz";
        symbols += loAZ.toUpperCase();
        symbols += "[\\]^_`";
        symbols += loAZ;
        symbols += "{|}~";        
        valueStr = valueStr.toLowerCase();
        var hex = "0123456789abcdef";
        var text = "";
        var i = 0;
        for (i = 0; i < valueStr.length; i = i + 2) {
            var char1 = valueStr.charAt(i);
            if (char1 == ' ') {
                i++;
                char1 = valueStr.charAt(i);
            }
            var char2 = valueStr.charAt(i + 1);
            var num1 = hex.indexOf(char1);
            var num2 = hex.indexOf(char2);
            var value = num1 << 4;
            value = value | num2;
            var valueInt = parseInt(value);
            var symbolIndex = valueInt - 32;
            var ch = '';
            if (symbolIndex >= 0 && value <= 126) {
                ch = symbols.charAt(symbolIndex)
                text += ch;
            }
        }
        return text;
}
console.info(toAscii('6b'))