Only letters type

index.d.ts

@@ -20,6 +20,7 @@ export type TextInputMaskTypeProp =
     | 'cel-phone'
     | 'datetime'
     | 'custom'
+    | 'only-letters'
 
 // Option prop of TextInputMask.
 export interface TextInputMaskOptionProp {

lib/masks/_base.mask.js

@@ -33,6 +33,10 @@ export default class BaseMask {
     removeNotNumbers(text) {
         return text.replace(/[^0-9]+/g, '')
     }
+
+    removeNotLeters(text) {
+        return text.replace(/\d/g, '')
+    }
 
     removeWhiteSpaces(text) {
         return (text || '').replace(/\s/g, '')

lib/masks/index.js

@@ -5,6 +5,7 @@ import CustomMask from './custom.mask'
 import DatetimeMask from './datetime.mask'
 import MoneyMask from './money.mask'
 import OnlyNumbersMask from './only-numbers.mask'
+import OnlyLettersMask from './only-letters.mask'
 import ZipCodeMask from './zip-code.mask'
 import CreditCardMask from './credit-card.mask'
 
@@ -15,5 +16,6 @@ module.exports.CustomMask = CustomMask
 module.exports.DatetimeMask = DatetimeMask
 module.exports.MoneyMask = MoneyMask
 module.exports.OnlyNumbersMask = OnlyNumbersMask
+module.exports.OnlyLettersMask = OnlyLettersMask
 module.exports.ZipCodeMask = ZipCodeMask
 module.exports.CreditCardMask = CreditCardMask

lib/masks/only-letters.mask.js

@@ -0,0 +1,23 @@
+import BaseMask from './_base.mask'
+
+export default class OnlyLettersMask extends BaseMask {
+    static getType() {
+        return 'only-letters'
+    }
+
+    getValue(value, settings) {
+        return this.removeNotLetters(String(value))
+    }
+
+    getRawValue(maskedValue, settings) {
+        return super.removeNotLetters(String(maskedValue))
+    }
+
+    validate(value, settings) {
+        return true
+    }
+
+    getMask(value, settings) {
+        return ''
+    }
+}