Binary to character string in Javascript

b2s.js

function b2s(s) {
    var b = s.replace(/[\s\t\n\r]/g, '').match(/.{1,8}/g)
    var o = "";
    for (i = 0; i < b.length; i++) o += String.fromCharCode(parseInt(b[i], 2));
    return o;
}