Binary to Decimal

bin2dec.js

/* Binary to Decimal Converter
   by Marcker - marckfree@gmail.com
   MIT License - < http://opensource.org/licenses/mit-license.php >
*/

function bin2dec(bin) {
    var a, c, d, e, i, j, k;
    a = bin.split();
    c = [];
    d = [];
    e = 0;
    i = a[0].length-1;
  
    for (j=0; j <= a[0].length-1; j += 1) {
        c[j] = a[0][j];
        d[j] = Number(c[j]) * Math.pow(2, i -= 1);
    }
    for (k=0; k <= d.length-1; k += 1) {
        e += d[k];
    }
    return e;
}