use-state-v2

use-state-v2 simplifies React state management by providing reusable operations, reducing code duplication, and making your development process more efficient.

The useState hook intelligently infers the data type from the initial value you provide and offers tailored operations for managing that specific type of state.

Table of Contents

• Common
• String
• Number
• Boolean
• Array
• Object

Installation

npm install use-state-v2

Usage

Do

function App() {
    const { filter, value } = useState([1, 2, 3, 10, 20, 30]);
    
    return (
        <div>
            <button onClick={() => filter((value) => value >= 10)}></button>
        </div>
    );
}

instead of

function App() {
    const  [values, setValues] = useState([1, 2, 3, 10, 20, 30]);

    return (
        <div>
            <button onClick={() => setValues(values.filter(value => value >= 10))}></button>
        </div>
    );
}

Data types

Common

The following common operations are available to all data types.

Set value

const { reset, set, value } = useState("Hello World");

set("Hello!");
console.log(value); // "Hello!"

Reset value

const { reset, set, value } = useState("Hello World");

set("Hello!");
console.log(value); // "Hello!"

reset();
console.log(value); // "Hello World"

String

Equivalent to common state management (please see above).

Number

Extends common state management operations with counter operations.

Decrement value

const { decrement, value } = useState(1);

decrement();
console.log(value); // 0

Increment value

const { increment, value } = useState(0);

increment();
console.log(value); // 1

Boolean

Extends common state management operations with toggle operations.

Set value to true

const { on, value } = useState(false);

on();
console.log(value); // true

Set value to false

const { off, value } = useState(true);

off();
console.log(value); // false

Toggle value on and off

const { toggle, value } = useState(true);

toggle();
console.log(value); // false

toggle();
console.log(value); // true

Array

Extends common state management operations with operations that easily add, remove, and update array items.

Add value

const { add, value } = useState([1, 2, 3]);

add(4);
console.log(value); // [1, 2, 3, 4]

Add values

const { add, value } = useState([1, 2, 3]);

add([4, 5]);
console.log(value); // [1, 2, 3, 4, 5]

Filter values

const { filter, value } = useState([0, 1, NaN, 2, 0, 3]);

filter((number) => number > 0);
console.log(value); // [1, 2, 3]

Insert value at index

const { insertAt, value } = useState([1, 2, 3]);

insertAt(0, 0);
console.log(value); // [0, 1, 2, 3]

Map values

const { map, value } = useState([1, 2, 3]);

map((value) => value * 2);
console.log(value); // [2, 4, 6]

Remove all occurrences value

const { remove, value } = useState([0, 0, 5, 5, 10, 10, 20, 20]);

remove(10);
console.log(value); // [0, 0, 5, 5, 20, 20]

Remove all occurrences values

const { remove, value } = useState([0, 0, 5, 5, 10, 10, 20, 20]);

remove([10, 20]);
console.log(value); // [0, 0, 5, 5]

Remove value at index

const { removeAt, value } = useState([1, 2, 3]);

removeAt(1);
console.log(value); // [1, 3]

TODO

Support for arrays of objects is being implemented.

Object

Extends common state management operations with operations that easily add, remove, and update object properties.

Add property

const { add, value } = useState<{ id: number; name: string; age?: number }>({
  id: 123,
  name: "John Doe",
});

add("age", 35);
console.log(value); // { id: 123, name: "John Doe", age: 35 }

Remove property

const { remove, value } = useState({ id: 123, name: "John Doe", age: 35 });

remove("age");
console.log(value); // { id: 123, name: "John Doe" }

Remove properties

const { remove, value } = useState({ id: 123, name: "John Doe", age: 35 });

remove(["age", "name"]);
console.log(value); // { id: 123 }

Update property

const { update, value } = useState({ id: 123, name: "John Doe", age: 35 });

update("age", 30);
console.log(value); // { age: 30 }

Get property

const { get, value } = useState({ id: 123, name: "John Doe", age: 35 });

get("id"); // 123

TODO

Support for nested properties is being implemented.