useInputCharacterLimit
Track number of input characters typed with useInputCharacterLimit and set your constraint character count.
Install:
npm i @uidotdev/usehooks
Description:
The useInputCharacterLimit hook allows you to track and control the current number of input characters typed inside the form input box. We can set a threshold value for the number of input characters as we desire to set a constraint.
Parameters
| Name | Type | Description |
|---|---|---|
| currentValue | string | The current state value of the input field. |
| maxValue | number | The maximum number of the input field value . |
| inputRef | object | The ref object of the input field. |
Return Value
The useInputCharacterLimit hook returns an object containing the following elements:
| Name | Type | Description |
|---|---|---|
| inputValue | string | The current state value of the input field. |
| isExceedingCount | boolean | The current state of the exceeded count. |
| currentValueLength | number | The length of the current input state value. |
Demo:
Example:
import React, { useRef } from "react";
import { useInputCharacterLimit } from "@uidotdev/usehooks";
export default function App() {
const inputRef = useRef(null);
const currentValue = "";
const maxValue = 20;
const { inputValue, isExceedingCount, currentValueLength } =
useInputCharacterLimit(currentValue, maxValue, inputRef);
return (
<div className="App">
<label>
Comments
</label>
<textarea ref={inputRef} value={inputValue} />
<div className={isExceedingCount ? "red-text" : ""}>
<span>{currentValueLength}</span>/{maxValue}
</div>
</div>
);
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