How to set state for text box in functional component - reactjs

Question

I am working on React JS. I have one text-box component and I want to show some default value in it. After that, the user should be allowed to change the value. Now I am unable to change the value. The text box is behaving like read-only. Below is my code
const EditStyleFormComponent = ({
submitting,
invalid,
}) => (
<form className={className} onSubmit={handleSubmit}>
<h2>LSPL (Low Stock Presentation Level)</h2>
<Line />
<InputGroup>
<TextFieldWithValidation name="lsplMan" label="LSPL Manual" input={{ onChnage:'', value: 'Current' }} />
</InputGroup>
</form>
);
Below is my TextFieldWithValidation code.
export const TextFieldWithValidationComponent = ({
meta,
input,
noStyles,
...otherProps
}) => (
<TextField
state={noStyles ? textFieldStates.DEFAULT : getState(meta)}
errorMessage={meta.touched ? meta.error : null}
{...input}
{...otherProps}
/>
);
Below is my TextField code.
const TextField = ({
className,
label,
description,
state,
errorMessage,
isEditable,
spaceAtBottom, // Not used, but we don't want it in otherProps
...otherProps
}) => {
const inputId = _.uniqueId();
return (
<div className={className}>
{label &&
<label htmlFor={inputId}>{label}</label>
}
<div className="input-group" id={isEditable ? 'editable' : 'readonly'}>
<input
id={inputId}
readOnly={!isEditable}
{...otherProps}
/>
{getStatusIcon(state)}
{errorMessage &&
<Error>{errorMessage}</Error>
}
{description &&
<Description>{description}</Description>
}
</div>
</div>
);
};
Can someone help me to fix this issue? Any help would be appreciated. Thanks

Answer 1

You can use State Hook for manage state in functional component.
Example :
const Message = () => {
const [message, setMessage] = useState( '' );
return (
<div>
<input
type="text"
value={message}
placeholder="Enter a message"
onChange={e => setMessage(e.target.value)}
/>
<p>
<strong>{message}</strong>
</p>
</div>
);
};

Answer 2

Yu defined onChange as empty string in EditStyleFormComponent component. So on any change input component just do nothing.
onChange should be some function that will update value.
If you want to use functional components there are two possible solutions:
Lift state up to parent component of EditStyleFormComponent (in case parent is class based component)
Use React Hooks like so (just example!)
const EditStyleFormComponent = ({
submitting,
invalid,
}) => {
const [inputValue, setInputValue] = useState ('Current'); // default value goes here
return <form className={className} onSubmit={handleSubmit}>
<h2>LSPL (Low Stock Presentation Level)</h2>
<Line />
<InputGroup>
<TextFieldWithValidation name="lsplMan" label="LSPL Manual" input={{ onChnage: (e) => { setInputValue(e.target.value); }, value: inputValue }} />
</InputGroup>
</form>
};