useCounter
Manage a counter value with minimum and maximum limits with useCounter.
Install:
npm i @uidotdev/usehooks
Description:
The useCounter hook is useful for managing a counter value with additional options for minimum and maximum limits. The hook takes a starting value and options object as parameters, which can specify minimum and maximum limits for the counter. If the starting value falls outside the specified limits, an error is thrown. The hook returns the current count value and an object containing functions to increment, decrement, set a specific count, and reset the counter.
Parameters
| Name | Type | Description |
|---|---|---|
| startingValue | number | The initial value for the counter. Default is 0. |
| options | object | Additional options for the counter. |
| options.min | number | The minimum value allowed for the counter. |
| options.max | number | The maximum value allowed for the counter. |
Return Value
The useCounter hook returns an array with two elements:
| Name | Parameters | Description |
|---|---|---|
[0] | The current value of the counter. | |
[1].increment | Increments the counter by 1. | |
[1].decrement | Decrements the counter by 1. | |
[1].set | nextCount: number | Sets the counter to the specified nextCount value. |
[1].reset | Resets the counter to the initial startingValue. |
Demo:
Example:
import * as React from "react";
import { useCounter } from "@uidotdev/usehooks";
export default function App() {
const [count, { increment, decrement, set, reset }] = useCounter(5, {
min: 5,
max: 10,
});
return (
<section>
<h1>UseCounter</h1>
<h6>with optional min / max</h6>
<button disabled={count >= 10} className="link" onClick={increment}>
Increment
</button>
<button disabled={count <= 5} className="link" onClick={decrement}>
Decrement
</button>
<button className="link" onClick={() => set(6)}>
Set to 6
</button>
<button className="link" onClick={reset}>
Reset
</button>
<p>{count}</p>
</section>
);
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