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Gathering detailed insights and metrics for use-constant-handler

use-constant-handler - 0.1.9 | npmpackage.info

use-constant-handler

react hooks useConstant ans useHandler

0.1.9

MIT

TypeScript

6.17 kB

1.7

Installations

npm install use-constant-handler

Developer Guide

BETA

Typescript

Yes

Module System

CommonJS

Node Version

14.15.3

NPM Version

6.14.9 Pull Requests

Open

0

Total

0

Closed

0

Issues

Open

0

Total

0

Closed

0

Releases

Unable to fetch releases

Languages

TypeScript

JavaScript

TypeScript (69.55%)

JavaScript (30.45%)

Developer

simprl

Download Statistics

Total Downloads

Last Day

Last Week

Last Month

Last Year

GitHub Statistics

MIT License

1 Stars

9 Commits

1 Watchers

1 Branches

1 Contributors

Updated on Nov 22, 2021

Maintainers

View All 1 Contributors

Package Meta Information

Latest Version

0.1.9

Package Id

use-constant-handler@0.1.9

Unpacked Size

6.17 kB

Size

2.51 kB

File Count

NPM Version

6.14.9

Node Version

14.15.3

Total Downloads

Cumulative downloads

Total Downloads

NaN

Last Day

NaN

Compared to previous day

Last Week

NaN

Compared to previous week

Last Month

NaN

Compared to previous month

Last Year

NaN

Compared to previous year

Weekly Downloads

Monthly Downloads

Yearly Downloads

Peer Dependencies

react

Dev Dependencies

@babel/core @babel/preset-env @babel/preset-typescript @open-wc/building-rollup @types/jest @types/react @types/react-test-renderer @types/redux babel-jest deepmerge jest react-test-renderer redux rimraf rollup typescript

use-constant-handler

React hooks for make constant pointer to function/handler

Usage

1import { useConstHandler } from "use-constant-handler";
2
3const Component = ({ onEvent, onInit }) => {
4    // pointer to onInit callback can changed, but pointor to initHandler don't change
5    const onInitHandler = useConstFunc(() => onInit());
6    useEffect(() => {
7        onInitHandler();
8    }, [onInitHandler]); //it will call only once becouse initHandler don`t change
9
10
11    // We do not need redraw input when onEvent callback change.
12    // New onEvent callback need only when SubComponent call onEvent.
13    // Pointer to onChange callback can changed,
14    // but pointor to onChangeHandler don't change
15    const onEventHandler = useConstHandler((e) => onEvent(e))
16    return <SubComponent onEvent={onEventHandler}/>;
17}

Description

Source code of useConstFunc:

1const useConstFunc = (f) => {
2	const { current } = useRef((...args) => current[FUNC_KEY]?.(...args));
3	current[FUNC_KEY] = f;
4	return current;
5};

Source code of useConstHandler:

1const useConstHandler = (f) => {
2    const { current } = useRef((...args) => (current[FUNC_KEY] ?? f)(...args));
3
4    useLayoutEffect(() => {
5        current[FUNC_KEY] = f;
6    });
7
8    return current;
9};

No vulnerabilities found.

10

Binary-Artifacts

Determines if the project has generated executable (binary) artifacts in the source repository.

10

License

Determines if the project has defined a license.

0

Maintained

Determines if the project is "actively maintained".

0

Code-Review

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0

SAST

Determines if the project uses static code analysis.

0

CII-Best-Practices

Determines if the project has an OpenSSF (formerly CII) Best Practices Badge.

0

Security-Policy

Determines if the project has published a security policy.

0

Fuzzing

Determines if the project uses fuzzing.

0

Branch-Protection

Determines if the default and release branches are protected with GitHub's branch protection settings.

0

Vulnerabilities

Determines if the project has open, known unfixed vulnerabilities.

Score

1.7

/10

Last Scanned on 2025-07-07

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