reactjsHow do I create a form using ReactJS?

Creating a form using ReactJS is fairly straightforward. To start, you need to create a <form> element to contain the form elements. Inside the <form> element, you can add any HTML input elements you need, such as <input>, <select>, or <textarea>.

For example:

<form>
  <label>Name:</label>
  <input type="text" name="name" />
  <label>Age:</label>
  <input type="number" name="age" />
  <input type="submit" value="Submit" />
</form>

To add React functionality to the form, you need to add a state object and a handleChange() method to the component. The state object should contain the values of the form, while the handleChange() method should update the state object when the form values change.

For example:

state = {
  name: '',
  age: ''
}

handleChange = (event) => {
  this.setState({
    [event.target.name]: event.target.value
  });
}

Finally, you need to add the value and onChange attributes to the form elements. The value attribute should be set to the corresponding value in the state object, while the onChange attribute should be set to the handleChange() method.

For example:

<input type="text" name="name" value={this.state.name} onChange={this.handleChange} />
<input type="number" name="age" value={this.state.age} onChange={this.handleChange} />

Helpful links

• Official React Docs - Forms
• React Tutorial - Forms

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