Merge pull request #346 from 12CU/header-option-for-unparse

Allow to unparse without headers

papaparse.js

@@ -234,6 +234,9 @@
 		/** whether to surround every datum with quotes */
 		var _quotes = false;
 
+		/** whether to write headers */
+		var _writeHeader = true;
+
 		/** delimiting character */
 		var _delimiter = ',';
 
@@ -296,6 +299,9 @@
 
 			if (typeof _config.newline === 'string')
 				_newline = _config.newline;
+
+			if (typeof _config.header === 'boolean')
+				_writeHeader = _config.header;
 		}
 
 
@@ -324,7 +330,7 @@
 			var dataKeyedByField = !(data[0] instanceof Array);
 
 			// If there a header row, write it first
-			if (hasHeader)
+			if (hasHeader && _writeHeader)
 			{
 				for (var i = 0; i < fields.length; i++)
 				{

tests/test-cases.js

@@ -1152,6 +1152,12 @@ var UNPARSE_TESTS = [
 		description: "JSON null is treated as empty value",
 		input: [{ "Col1": "a", "Col2": null, "Col3": "c" }],
 		expected: 'Col1,Col2,Col3\r\na,,c'
+	},
+	{
+		description: "Don't print header if header:false option specified",
+		input: [{ "Col1": "a", "Col2": "b", "Col3": "c" }, { "Col1": "d", "Col2": "e", "Col3": "f" }],
+		config: { header: false },
+		expected: 'a,b,c\r\nd,e,f'
 	}
 ];