how can i change firstname/lastname to firstName/lastName in react? the problem is that it comes from the backend

Question

the back-end example { "email": "string", "password": "string", "firstName" : "string", "lastName" : "string" }

i'm using TextInput:

     <TextInput 
           name='firstname'
           type='text'
           label='First Name'  
           placeholder='John'/>

Answer 1

my mistake was in formik, i writes value names wrong

  <Formik 
    initialValues={{email: "", password: "", firstname: "", lastname: "", 
     passwordConfirm: ""}}
   >

**should be **

<Formik 
        initialValues={
              {email: "", 
               password: "", 
             **firstName: "",** 
             **lastName:""**, 
         passwordConfirm: ""}}
       >