diff --git a/javascript/qrcodegen.js b/javascript/qrcodegen.js
index 15c312e..499c038 100644
--- a/javascript/qrcodegen.js
+++ b/javascript/qrcodegen.js
@@ -32,7 +32,7 @@
  *   - Function encodeSegments(list<QrSegment> segs, QrCode.Ecc ecl,
  *         int minVersion=1, int maxVersion=40, mask=-1, boostEcl=true) -> QrCode
  *   - Constants int MIN_VERSION, MAX_VERSION
- *   - Constructor QrCode(list<int> dataCodewords, int mask, int version, QrCode.Ecc ecl)
+ *   - Constructor QrCode(int version, QrCode.Ecc ecl, list<int> dataCodewords, int mask)
  *   - Fields int version, size, mask
  *   - Field QrCode.Ecc errorCorrectionLevel
  *   - Method getModule(int x, int y) -> bool
@@ -68,7 +68,7 @@ var qrcodegen = new function() {
 	 * and mask number. mask = -1 is for automatic choice, or 0 to 7 for fixed choice. This is a cumbersome low-level constructor
 	 * that should not be invoked directly by the user. To go one level up, see the QrCode.encodeSegments() function.
 	 */
-	this.QrCode = function(dataCodewords, mask, version, errCorLvl) {
+	this.QrCode = function(version, errCorLvl, dataCodewords, mask) {
 		
 		/*---- Constructor (low level) ----*/
 		
@@ -597,7 +597,7 @@ var qrcodegen = new function() {
 			bb.appendBits(padByte, 8);
 		
 		// Create the QR Code symbol
-		return new this(bb.getBytes(), mask, version, ecl);
+		return new this(version, ecl, bb.getBytes(), mask);
 	};
 	
 	
diff --git a/python/qrcodegen.py b/python/qrcodegen.py
index 190dee2..dbbd5d3 100644
--- a/python/qrcodegen.py
+++ b/python/qrcodegen.py
@@ -32,7 +32,7 @@ This module "qrcodegen", public members:
   - Function encode_segments(list<QrSegment> segs, QrCode.Ecc ecl,
         int minversion=1, int maxversion=40, mask=-1, boostecl=true) -> QrCode
   - Constants int MIN_VERSION, MAX_VERSION
-  - Constructor QrCode(bytes datacodewords, int mask, int version, QrCode.Ecc ecl)
+  - Constructor QrCode(int version, QrCode.Ecc ecl, bytes datacodewords, int mask)
   - Method get_version() -> int
   - Method get_size() -> int
   - Method get_error_correction_level() -> QrCode.Ecc
@@ -141,12 +141,12 @@ class QrCode(object):
 			bb.append_bits(padbyte, 8)
 		
 		# Create the QR Code symbol
-		return QrCode(bb.get_bytes(), mask, version, ecl)
+		return QrCode(version, ecl, bb.get_bytes(), mask)
 	
 	
 	# ---- Constructor (low level) ----
 	
-	def __init__(self, datacodewords, mask, version, errcorlvl):
+	def __init__(self, version, errcorlvl, datacodewords, mask):
 		"""Creates a new QR Code symbol with the given version number, error correction level, binary data array,
 		and mask number. mask = -1 is for automatic choice, or 0 to 7 for fixed choice. This is a cumbersome low-level constructor
 		that should not be invoked directly by the user. To go one level up, see the QrCode.encode_segments() function."""
diff --git a/typescript/qrcodegen.ts b/typescript/qrcodegen.ts
index 8e36f40..d8d12e9 100644
--- a/typescript/qrcodegen.ts
+++ b/typescript/qrcodegen.ts
@@ -127,7 +127,7 @@ namespace qrcodegen {
 				bb.appendBits(padByte, 8);
 			
 			// Create the QR Code symbol
-			return new QrCode(bb.getBytes(), mask, version, ecl);
+			return new QrCode(version, ecl, bb.getBytes(), mask);
 		}
 		
 		
@@ -147,18 +147,18 @@ namespace qrcodegen {
 		/*-- Constructor (low level) and fields --*/
 		
 		public constructor(
+				// This QR Code symbol's version number, which is always between 1 and 40 (inclusive).
+				public readonly version: int,
+				
+				// The error correction level used in this QR Code symbol.
+				public readonly errorCorrectionLevel: QrCode.Ecc,
+				
 				dataCodewords: Array<byte>,
 				
 				// The mask pattern used in this QR Code symbol, in the range 0 to 7 (i.e. unsigned 3-bit integer).
 				// Note that even if the constructor was called with automatic masking requested
 				// (mask = -1), the resulting object will still have a mask value between 0 and 7.
-				public readonly mask: int,
-				
-				// This QR Code symbol's version number, which is always between 1 and 40 (inclusive).
-				public readonly version: int,
-				
-				// The error correction level used in this QR Code symbol.
-				public readonly errorCorrectionLevel: QrCode.Ecc) {
+				public readonly mask: int) {
 			
 			// Check arguments and handle simple scalar fields
 			if (mask < -1 || mask > 7)