Akce.preventDefault( ) nefunguje v Reagovat

0

Otázka

Nelze získat hodnoty v konzole! Co dělám špatně?

Níže v příloze je funkční složkou Reagovat

Psovod Funkce

import React, { useState, useRef } from 'react';

const SimpleInput = (props) => {
  const nameInputRef = useRef();
  const [enteredName, setEnteredName] = useState('');

  const nameInputChangeHandler = (event) => {
    setEnteredName(event.target.value);
  };

  const formSubmissionHandler = (event) => {
    event.preventDefault();
    console.log(enteredName);

    const enteredName = nameInputRef.current.value;
    console.log(enteredName);
  };

O JSX Kód

  return (
    <form>
      <div className="form-control" onSubmit={formSubmissionHandler}>
        <label htmlFor="name">Your Name</label>
        <input
          ref={nameInputRef}
          type="text"
          id="name"
          onChange={nameInputChangeHandler}
        />
      </div>
      <div className="form-actions">
        <button>Submit</button>
      </div>
    </form>
  );
};

export default SimpleInput;
forms preventdefault react-hooks reactjs
2021-11-24 05:45:19
1

Nejlepší odpověď

1

formSubmissionHandler by měl mít na form prvek, spíše než div prvek.

 return (
    <form onSubmit={formSubmissionHandler}>
      <div className="form-control">
        <label htmlFor="name">Your Name</label>
        <input
          ref={nameInputRef}
          type="text"
          id="name"
          onChange={nameInputChangeHandler}
        />
      </div>
      <div className="form-actions">
        <button>Submit</button>
      </div>
    </form>
  );
2021-11-24 05:52:29

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