How to add multiple values using chip - reactjs

Question

In my project, I have an email field to implement using the chip component.
But I am facing a problem here, first time, when I paste multiple email values it gets inserted into the field, but second time when I copy some other values and paste them into the field, it replaces the previous values.
import React, { useRef, useState } from "react";
import ReactDOM from "react-dom";
import Chip from "#material-ui/core/Chip";
import TextField from "#material-ui/core/TextField";
import './styles.css';
export const TagActions = () => {
const [items, setItem] = useState<string[]>([]);
const [value, setValue] = useState('')
const [error, setError]= useState('')
const divRef = useRef<HTMLDivElement>(null)
const [flag, setFlag] = useState(false)
const handleDelete = (item:any) => {
console.log("handleDelete", item)
const result = items.filter(i => i !== item)
setItem(result)
};
const handleItemEdit = (item:any) =>{
console.log("handleItemEdit", item)
const result = items.filter(i => i !== item)
setItem(result)
setValue(item)
console.log("value", value)
};
const handleKeyDown = (evt:any) => {
if (["Enter", "Tab", ","].includes(evt.key)) {
evt.preventDefault();
var test = value.trim();
if (test && isValid(test)) {
items.push(test)
setValue("")
}
}
};
const isValid = (email:any)=> {
let error = null;
if (isInList(email)) {
error = `${email} has already been added.`;
}
if (!isEmail(email)) {
setFlag(true)
// error = `${email} is not a valid email address.`;
}
if (error) {
setError(error);
return false;
}
return true;
}
const isInList = (email:any)=> {
return items.includes(email);
}
const isEmail = (email:any)=> {
return /[\w\d\.-]+#[\w\d\.-]+\.[\w\d\.-]+/.test(email);
}
const handleChange = (evt:any) => {
setValue(evt.target.value)
// setError("")
};
const handlePaste = (evt:any) => {
evt.preventDefault();
var paste = evt.clipboardData.getData("text");
var emails = paste.match(/[\w\d\.-]+#[\w\d\.-]+\.[\w\d\.-]+/g);
if (emails) {
var toBeAdded = emails.filter((email:any) => !isInList(email));
setItem(toBeAdded)
}
};
return (
<>
<div>
<TextField id="outlined-basic" variant="outlined"
InputProps={{
startAdornment: items.map(item => (
<Chip
className={!isEmail(item) ? "chip-tag-error": "chip-tag"}
key={item}
tabIndex={-1}
label={item}
onDelete={() => handleDelete(item)}
onClick={() => handleItemEdit(item)}
/>
)),
}}
ref={divRef}
value={value}
placeholder="Type or paste email addresses and press `Enter`..."
onKeyDown={(e) => handleKeyDown(e)}
onChange={(e) => handleChange(e)}
onPaste={(e) => handlePaste(e)}
/>
</div>
{error && <p className="error">{error}</p>}
</>
);
}
Please give me a solution to fix this problem.

Answer 1

You can do this by using the Autocomplete with renderTags function here is an example
import {
Box,
TextField,
Autocomplete,
Chip,
} from '#mui/material'
...
const {
handleSubmit,
control,
formState: { errors },
} = useForm()
...
<Box mt={2}>
<Controller
control={control}
name="tags"
rules={{
required: "Veuillez choisir une réponse",
}}
render={({ field: { onChange } }) => (
<Autocomplete
defaultValue={
useCasesData?.tags ? JSON.parse(useCasesData?.tags) : []
}
multiple
id="tags-filled"
options={[]}
freeSolo
renderTags={(value, getTagProps) =>
value.map((option, index) => (
<Chip
variant="outlined"
label={option}
{...getTagProps({ index })}
/>
))
}
onChange={(event, values) => {
onChange(values);
}}
renderInput={(params) => (
<TextField
{...params}
label="Métadonnées"
placeholder="Ecriver les métadonnées"
helperText={errors.tags?.message}
error={!!errors.tags}
/>
)}
/>
)}
/>
</Box>