shystruk · shystruk · Jan 26, 2023 · Dec 3, 2022 · Dec 14, 2022 · Dec 14, 2022
diff --git a/README.md b/README.md
@@ -45,14 +45,16 @@ Type: `Object` <br>
 
 Config object should contain:<br>
 **headers** - Type: `Array`, row header (title) objects<br>
-**isHeaderNameOptional** - Type: `Boolean`, skip the header name if it is empty<br>
+**isHeaderNameOptional** - Type: `Boolean`, skip headers name if it is empty<br>
+**isColumnIndexAlphabetic** - Type: `Boolean`, convert numeric column index to alphabetic letter<br>
 **parserConfig** - Type: `Object`, optional, [papaparse](https://www.papaparse.com/docs#config) options.
 Default options, which can't be overridden: **skipEmptyLines**, **complete** and **error**
 
 ```javascript
 const config = {
     headers: [], // required
-    isHeaderNameOptional: false // default (optional)
+    isHeaderNameOptional: false, // default (optional)
+    isColumnIndexAlphabetic: false // default (optional)
 }
 ```
 
@@ -78,7 +80,7 @@ If a header name is omitted or is not the same as in config *name* headerError f
 ### required
 Type: `Boolean` <br>
 
-If required is true than a column value will be checked if it is not empty
+If required is true then a column value will be checked if it is not empty
 
 ### requiredError
 Type: `Function` <br>

diff --git a/demo-ts/demo_comma.csv b/demo-ts/demo_comma.csv
@@ -0,0 +1,5 @@
+Name,Surname,Age
+Test,Test,1
+Test_1,,2
+Test_2,Test_2,
+,Test_3,1
diff --git a/demo-ts/dist/bundle.js b/demo-ts/dist/bundle.js
diff --git a/demo-ts/index.html b/demo-ts/index.html
@@ -10,10 +10,16 @@
         </style>
     </head>
     <body>
-        <input type="file" accept=".csv" id="file" />
+		<div>Semicolon delimiter (demo.csv)</div>
+		<p><input type="file" accept=".csv" id="file" /></p>
+		<div id="invalidMessages"></div>
 
-        <div id="invalidMessages"></div>
+		<br/><br/>
+
+		<div>Comma delimiter (demo_comma.csv)</div>
+		<p><input type="file" accept=".csv" id="file_1" /></p>
+		<div id="invalidMessages_1"></div>
 
         <script src="dist/bundle.js"></script>
     </body>
-</html>
+</html>
diff --git a/demo-ts/index.ts b/demo-ts/index.ts
@@ -17,6 +17,10 @@ const isEmailValid = function (email: string) {
 	return reqExp.test(email)
 }
 
+const isAgeValid = function (age:number) {
+	return age > 0
+}
+
 const isPasswordValid = function (password: string) {
 	return password.length >= 4
 }
@@ -29,14 +33,21 @@ interface CSVRow {
 	roles: string;
 }
 
+interface CSVRow_1 {
+	name: string;
+	surname: string;
+	age: string;
+}
+
 const CSVConfig: ValidatorConfig = {
 	headers: [
 		{ name: 'First Name', inputName: 'firstName', required: true, requiredError },
 		{ name: 'Last Name', inputName: 'lastName', required: true, requiredError, optional: true },
 		{ name: 'Email', inputName: 'email', required: true, requiredError, unique: true, uniqueError, validate: isEmailValid, validateError },
 		{ name: 'Password', inputName: 'password', required: true, requiredError, validate: isPasswordValid, validateError },
 		{ name: 'Roles', inputName: 'roles', required: true, requiredError, isArray: true }
-	]
+	],
+	isColumnIndexAlphabetic: true
 }
 
 document.getElementById('file').onchange = function (event: any) {
@@ -49,3 +60,25 @@ document.getElementById('file').onchange = function (event: any) {
 			console.log(csvData.data)
 		})
 }
+
+const CSVConfig_1: ValidatorConfig = {
+	headers: [
+		{ name: 'Name', inputName: 'name', required: true, requiredError },
+		{ name: 'Surname', inputName: 'surname', required: true, requiredError, optional: true },
+		{ name: 'Age', inputName: 'age', required: true, requiredError, validate: isAgeValid, validateError },
+	],
+	parserConfig: {
+		dynamicTyping: true
+	}
+}
+
+document.getElementById('file_1').onchange = function (event: any) {
+	CSVFileValidator<CSVRow_1>(event.target.files[0], CSVConfig_1)
+		.then((csvData: ParsedResults) => {
+			csvData.inValidData.forEach((item) => {
+				document.getElementById('invalidMessages_1').insertAdjacentHTML('beforeend', item.message)
+			})
+			console.log(csvData.inValidData)
+			console.log(csvData.data)
+		})
+}
diff --git a/demo/demo_comma.csv b/demo/demo_comma.csv
@@ -0,0 +1,5 @@
+Name,Surname,Age
+Test,Test,0
+Test_1,,2
+Test_2,Test_2,
+,Test_3,1
diff --git a/demo/dist/bundle.js b/demo/dist/bundle.js
diff --git a/demo/dist/bundle.js.map b/demo/dist/bundle.js.map
diff --git a/demo/index.html b/demo/index.html
@@ -10,10 +10,16 @@
         </style>
     </head>
     <body>
-        <input type="file" accept=".csv" id="file" />
+		<div>Semicolon delimiter (demo.csv)</div>
+        <p><input type="file" accept=".csv" id="file" /></p>
+		<div id="invalidMessages"></div>
 
-        <div id="invalidMessages"></div>
+		<br/><br/>
+
+		<div>Comma delimiter (demo_comma.csv)</div>
+		<p><input type="file" accept=".csv" id="file_1" /></p>
+		<div id="invalidMessages_1"></div>
 
         <script src="dist/bundle.js"></script>
     </body>
-</html>
+</html>
diff --git a/demo/index.js b/demo/index.js
@@ -17,6 +17,10 @@ const isEmailValid = function (email) {
 	return reqExp.test(email)
 }
 
+const isAgeValid = function (age) {
+	return age > 0
+}
+
 const isPasswordValid = function (password) {
 	return password.length >= 4
 }
@@ -28,7 +32,8 @@ const CSVConfig = {
 		{ name: 'Email', inputName: 'email', required: true, requiredError, unique: true, uniqueError, validate: isEmailValid, validateError },
 		{ name: 'Password', inputName: 'password', required: true, requiredError, validate: isPasswordValid, validateError },
 		{ name: 'Roles', inputName: 'roles', required: true, requiredError, isArray: true }
-	]
+	],
+	isColumnIndexAlphabetic: true
 }
 
 document.getElementById('file').onchange = function (event) {
@@ -41,3 +46,25 @@ document.getElementById('file').onchange = function (event) {
 			console.log(csvData.data)
 		})
 }
+
+const CSVConfig_1 = {
+	headers: [
+		{ name: 'Name', inputName: 'name', required: true, requiredError },
+		{ name: 'Surname', inputName: 'surname', required: true, requiredError, optional: true },
+		{ name: 'Age', inputName: 'age', required: true, requiredError, validate: isAgeValid, validateError },
+	],
+	parserConfig: {
+		dynamicTyping: true
+	}
+}
+
+document.getElementById('file_1').onchange = function (event) {
+	CSVFileValidator(event.target.files[0], CSVConfig_1)
+		.then(csvData => {
+			csvData.inValidData.forEach(item => {
+				document.getElementById('invalidMessages_1').insertAdjacentHTML('beforeend', item.message)
+			})
+			console.log(csvData.inValidData)
+			console.log(csvData.data)
+		})
+}
diff --git a/package.json b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "csv-file-validator",
-	"version": "2.0.0",
+	"version": "2.1.0",
 	"description": "Validation of CSV file against user defined schema (returns back object with data and invalid messages)",
 	"main": "./src/csv-file-validator.js",
 	"types": "./src/csv-file-validator.d.ts",

diff --git a/src/csv-file-validator.d.ts b/src/csv-file-validator.d.ts
@@ -12,7 +12,7 @@ export interface FieldSchema {
 	/** Makes column optional. If true column value will be return */
 	optional?: boolean;
 
-	/** If required is true than a column value will be checked if it is not empty */
+	/** If required is true then a column value will be checked if it is not empty */
 	required?: boolean;
 
 	/** If it is true all header (title) column values will be checked for uniqueness */
@@ -48,7 +48,7 @@ export interface FieldSchema {
 	 * Validate column value.
 	 * Must return true for valid field and false for invalid.
 	 */
-	validate?: (field: string) => boolean;
+	validate?: (field: string|number|boolean) => boolean;
 
 	/**
 	 * Validate column value that depends on other values in other columns.
@@ -83,6 +83,7 @@ export interface ValidatorConfig {
 	headers: FieldSchema[];
 	isHeaderNameOptional?: boolean;
 	parserConfig?: ParseConfig;
+	isColumnIndexAlphabetic?: boolean;
 }
 
 export default function CSVFileValidator<Row = any, Error = RowError>(