Updated JavaScript code for type purity to ensure the modules array is actually Boolean (instead of numeric) after masking, tweaked TypeScript code to correspond to new JS code.

javascript/qrcodegen.js

@@ -398,7 +398,8 @@ var qrcodegen = new function() {
 						case 7:  invert = ((x + y) % 2 + x * y % 3) % 2 == 0;                break;
 						default:  throw "Assertion error";
 					}
-					modules[y][x] ^= invert & !isFunction[y][x];
+					if (!isFunction[y][x] && invert)
+						modules[y][x] = !modules[y][x];
 				}
 			}
 		}

typescript/qrcodegen.ts

@@ -470,7 +470,7 @@ namespace qrcodegen {
 						case 7:  invert = ((x + y) % 2 + x * y % 3) % 2 == 0;                break;
 						default:  throw "Assertion error";
 					}
-					if (invert && !this.isFunction[y][x])
+					if (!this.isFunction[y][x] && invert)
 						this.modules[y][x] = !this.modules[y][x];
 				}
 			}