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VisualizaçõesSetting formData with an object
Currently, i have this state with a formData.
Upon typing some text, instead to change the fullName.firstName. its making another property and just setting a single (as in single letter) value.
const [formData, setFormData] = useState({
fullName: {
firstName: "",
lastName: "",
},
email: "",
password: "",
confirmPassword: "",
});
This is how i set the formData.
const handleChange = (event) => {
const { value, name } = event.target;
console.log(name, value);
setFormData((prevFormData) => ({
...prevFormData,
[name]: value,
}));
};
This is my JSX, you may check the "name" attribute in input for some reference.
<div className="App">
<form onSubmit={onSubmit}>
<h1>Submit Form Nested Object UseState</h1>
<input
text="text"
placeholder="First Name"
name="firstName"
value={formData.fullName.firstName}
onChange={handleChange}
/>
<input
text="text"
placeholder="Last Name"
name="lastName"
value={formData.fullName.lastName}
onChange={handleChange}
/>
<input
text="email"
placeholder="email"
name="email"
value={formData.email}
onChange={handleChange}
/>
<input
text="password"
placeholder="password"
name="password"
value={formData.password}
onChange={handleChange}
/>
<input
text="password"
placeholder="confirm Password"
name="confirmPassword"
value={formData.confirmPassword}
onChange={handleChange}
/>
<button>Submit</button>
</form>
{JSON.stringify(formData, null, 2)}
</div>
·
Juan Pablo Isaza
1 Respostas
Responde à pergunta0
Change the form names like so:
<form onSubmit={onSubmit}>
<h1>Submit Form Nested Object UseState</h1>
<input
placeholder="First Name"
name="fullName.firstName"
value={formData.fullName.firstName}
onChange={handleChange}
/>
<input
placeholder="Last Name"
name="fullName.lastName"
value={formData.fullName.lastName}
onChange={handleChange}
/>
<input
placeholder="email"
name="email"
value={formData.email}
onChange={handleChange}
/>
<input
placeholder="password"
name="password"
value={formData.password}
onChange={handleChange}
/>
<input
placeholder="confirm Password"
name="confirmPassword"
value={formData.confirmPassword}
onChange={handleChange}
/>
<button>Submit</button>
</form>
then change your handleChange function to this:
const handleChange = (event) => {
const { value } = event.target;
const [key,subkey] = event.target.name.split('.');
setFormData((prevFormData) => ({
...prevFormData,
[key]: subkey ? {
...prevFormData[key],
[subkey]: value,
} : value
}));
};
·
Juan Pablo Isaza
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