for TEXTJOIN formula

cell/model/FormulaObjects/parserFormula.js

@@ -2468,6 +2468,34 @@ parserHelp.setDigitSeparator(AscCommon.g_oDefaultCultureInfo.NumberDecimalSepara
 		}
 		return null;
 	};
+	cBaseFunction.prototype._getOneDimensionalArray = function (arg, type) {
+		var res = [];
+
+		var getValue = function(curArg){
+			if(undefined === type || cElementType.string === type){
+				return curArg.tocString().getValue();
+			}else if( cElementType.number === type){
+				return curArg.tocNumber().getValue();
+			}
+		};
+
+		if (cElementType.cellsRange === arg.type || cElementType.cellsRange3D === arg.type) {
+			arg = arg.getMatrix();
+			for (var i = 0; i < arg.length; i++) {
+				for (var j = 0; j < arg[i].length; j++) {
+					res.push(getValue(arg[i][j]));
+				}
+			}
+		}else if(cElementType.array === arg.type){
+			arg.foreach(function (elem) {
+				res.push(getValue(elem));
+			})
+		}else{
+			res.push(getValue(arg));
+		}
+
+		return res;
+	};
 
 	/** @constructor */
 	function parentLeft() {

cell/model/FormulaObjects/textanddataFunctions.js

@@ -1806,26 +1806,34 @@
 	cTEXTJOIN.prototype.isXLFN = true;
 	cTEXTJOIN.prototype.Calculate = function (arg) {
 
-		var oArguments = this._prepareArguments([arg[0], arg[1]], arguments[1], true);
-		var argClone = oArguments.args;
-
-		argClone[0] = argClone[0].tocString();
-		argClone[1] = argClone[1].tocBool();
+		var argClone = [arg[0], arg[1]];
+		argClone[1] = arg[1].tocBool();
 
 		var argError;
 		if (argError = this._checkErrorArg(argClone)) {
 			return this.value = argError;
 		}
 
-		var delimiter = argClone[0].toString();
 		var ignore_empty = argClone[1].toBool();
+		var delimiter = argClone[0];
+		var delimiterArr = this._getOneDimensionalArray(delimiter);
+		var delimiterIter = 0;
 
 		var concatString = function(string1, string2){
 			var res = string1;
-			var delimeterStr = string1 === "" ? "" : delimiter;
 			if("" === string2 && ignore_empty){
 				return res;
 			}
+			var isStartStr = string1 === "";
+			var delimeterStr = isStartStr ? "" : delimiterArr[delimiterIter];
+			if(undefined === delimeterStr){
+				delimiterIter = 0;
+				delimeterStr = delimiterArr[delimiterIter];
+			}
+			if(!isStartStr){
+				delimiterIter++;
+			}
+			
 			res += delimeterStr + string2;
 			return res;
 		};