📅  最后修改于: 2023-12-03 15:19:43.414000             🧑  作者: Mango
React LocalStorage is a package that provides easy access to the browser's localStorage API in React components. This library allows you to easily save and retrieve data from the browser's local storage in your React applications.
To install React LocalStorage, simply run the following command in your terminal:
npm install react-localstorage --save
Using React LocalStorage is quite simple. Here is an example:
import React, { useState } from "react";
import { useLocalStorage } from "react-localstorage";
const ExampleComponent = () => {
const [name, setName] = useState("");
const [storageValue, setStorageValue] = useLocalStorage("name");
const handleChange = (event) => {
setName(event.target.value);
};
const handleClick = () => {
setStorageValue(name);
};
return (
<div>
<label>
Your Name:
<input type="text" value={name} onChange={handleChange} />
</label>
<button onClick={handleClick}>Save</button>
<p>Value in local storage: {storageValue}</p>
</div>
);
};
In this example, we import useLocalStorage
from react-localstorage
package. The useLocalStorage
hook is used to get and set the value of the "name" key in the browser's local storage.
We also use the useState
hook to create a state variable to store the name entered by the user in the input field.
The handleChange
function is called whenever the user types something in the input field. This function updates the name
state variable with the new value.
The handleClick
function is called when the user clicks the "Save" button. This function saves the value of the name
state variable to the "name" key in the local storage using the setStorageValue
function provided by the useLocalStorage
hook.
Finally, we display the value stored in the "name" key in the local storage using the storageValue
state variable.
React LocalStorage is a simple and easy-to-use library for accessing the browser's local storage API in React components. It provides a convenient way to store and retrieve data in your React applications.
With the useLocalStorage hook, you can easily read and write to the local storage using familiar React state management techniques.