.gitignore

@@ -1,2 +1,4 @@
 node_modules
+
+.DS_Store
 package-lock.json

index.d.ts

@@ -2,6 +2,6 @@ export function clean(rut: string): string;
 
 export function validate(rut: string): boolean;
 
-export function format(rut: string): string;
+export function format(rut: string, options?: { dots: boolean }): string;
 
 export function getCheckDigit(rut: string): string;

index.js

@@ -34,12 +34,19 @@ function validate (rut) {
   return v === rut.slice(-1)
 }
 
-function format (rut) {
+function format (rut, options = {
+  dots: true
+}) {
   rut = clean(rut)
 
-  let result = rut.slice(-4, -1) + '-' + rut.substr(rut.length - 1)
-  for (let i = 4; i < rut.length; i += 3) {
-    result = rut.slice(-3 - i, -i) + '.' + result
+  let result
+  if (options.dots) {
+    result = rut.slice(-4, -1) + '-' + rut.substr(rut.length - 1)
+    for (let i = 4; i < rut.length; i += 3) {
+      result = rut.slice(-3 - i, -i) + '.' + result
+    }
+  } else {
+    result = rut.slice(0, -1) + '-' + rut.substr(rut.length - 1)
   }
 
   return result

package.json

@@ -1,6 +1,6 @@
 {
   "name": "rut.js",
-  "version": "2.0.0",
+  "version": "2.1.0",
   "description": "Sencilla y pequeña libreria para validar y dar formato al RUT",
   "license": "MIT",
   "repository": "jlobos/rut.js",

readme.md

@@ -5,8 +5,12 @@ Sencilla y pequeña libreria para validar y dar formato al RUT. Funciona en Node
 > Utilizada en producción para manejar mas de 13 millones de chilenos en [~Rutify – Rutificador~](https://rutify.cl/)
 
 ```js
+// AMD
 const { validate, clean, format, getCheckDigit } = require('rut.js')
 
+// ES2015 Modules
+import {  validate, clean, format, getCheckDigit } from 'rut.js'
+
 // true
 validate('18.972.631-7')
 validate('18972631-7')
@@ -46,6 +50,12 @@ format('189726317')     // '18.972.631-7'
 format('18*972*631*7')  // '18.972.631-7'
 format('9068826-k')     // '9.068.826-K'
 
+// Dots es true por default
+format('18.972.631-7', { dots: false })  // '18972631-7'
+format('189726317', { dots: false })     // '18972631-7'
+format('18*972*631*7', { dots: false })  // '18972631-7'
+format('9068826-k', { dots: false })     // '9068826-K'
+
 /**
  * Obtener el dígito verificador
  */
@@ -57,6 +67,7 @@ getCheckDigit('9068826')     // 'K'
 
 ```bash
 npm install --save rut.js
+yarn add rut.js
 ```
 
 ## Testing

test.js

@@ -35,6 +35,10 @@ test('format', (t) => {
   t.is(format('189726317'), '18.972.631-7')
   t.is(format('18*972*631*7'), '18.972.631-7')
   t.is(format('9068826-k'), '9.068.826-K')
+  t.is(format('18.972.631-7', { dots: false }), '18972631-7')
+  t.is(format('189726317', { dots: false }), '18972631-7')
+  t.is(format('18*972*631*7', { dots: false }), '18972631-7')
+  t.is(format('9068826-k', { dots: false }), '9068826-K')
 })
 
 test('does not validate rut with 0 on most right digit', t => {