qrcode.process = function(a) { var b = (new Date).getTime(); var c = qrcode.grayScaleToBitmap(qrcode.grayscale()); var d = new Detector(c); var e = d.detect(); a.putImageData(qrcode.imagedata, 0, 0); var f = Decoder.decode(e.bits); var g = f.DataByte; var h = []; for (var i = 0; i < g.length; i++) { for (var j = 0; j < g[i].length; j++) { var t=g[i][j],v=String.fromCharCode;h+="%"+v(48+Math.floor(t/16))+v(48+t%16); } } var k = (new Date).getTime(); var l = k - b; console.log(l); return decodeURI(h)}