CODEWITHSUNDEEP
reactjsreact-nativereact-hooksuse-stateuse-ref
4est
4est

Reputation: 3168

Clear value into input using useState or useRef (React)

I got hook:

const [myName, setMyName] = useState("");
const myNameRef = useRef();

Then I have form:

<form onSubmit={(e) => addVist(e, user.id)}>
 <input type="text" name="myName" ref={myNameRef} onChange={e => setMyName(e.target.value)} />
 <input type="submit" value="Run" />
</form>

And method:

const addVist = (e, userId) => {
        e.preventDefault();

        console.log(myName)
        //some code....

        //clear value form
        setMyName("");
        //setMyName('');
        //setMyName(e.target.value = "");
        //myNameRef.current.value("");

    }

But the setMyName("") is not working - still I see value inside input.

Upvotes: 3

Views: 5498

Answers (4)

Elif
Elif

Reputation: 161

You forgot to add myName as value.

<input type="text" name="myName" value={myName} ref={myNameRef} onChange={e => setMyName(e.target.value)} />

Upvotes: 1

Dennis Vash
Dennis Vash

Reputation: 53874

Here is a complete example of clearing input using state OR a reference:

export default function App() {
  const [value, setValue] = useState("");
  const inputRef = useRef();
  return (
    <>
      <input value={value} onChange={(e) => setValue(e.target.value)} />
      <input ref={inputRef} />
      <button
        onClick={() => {
          setValue("");
          inputRef.current.value = "";
        }}
      >
        Clear
      </button>
    </>
  );
}

Refer to Controlled VS Uncontrolled components.

Upvotes: 4

Evan Christians
Evan Christians

Reputation: 71

On your text input you should pass myName into the value attribute like so

<input type="text" name="myName" value={myName} ref={myNameRef} onChange={e => setMyName(e.target.value)} />

Upvotes: 1

wangdev87
wangdev87

Reputation: 8751

You missed binding myName as value attribute of the input tag.

 <input type="text" name="myName" value={myName} ref={myNameRef} onChange={e => setMyName(e.target.value)} />

Upvotes: 2

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