Add a formatter feature to input similar to input-number #553
Description
- I have searched the issues of this repository and believe that this is not a duplicate.
What problem does this feature solve?
I often want to add some formatting to my text inputs to e.g trim whitespaces or capitalise the first letter of an input.
This improves end user experience because they can immediately see how their values will actually be parsed and edit their input if required.
I don't believe we'll need to implement a parser since input components don't need to convert from String to Number.
What does the proposed API look like?
Formatter would be identical to input-number:
<template>
<a-input
placeholder="First name"
v-model="lastname"
formatter="value => value.trim"
>
</template>