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Gathering detailed insights and metrics for react-lifecycles-compat

react-lifecycles-compat - 3.0.4 | npmpackage.info

react-lifecycles-compat

Backwards compatibility polyfill for React class components

3.0.4

459

MIT

JavaScript

1.9

Installations

npm install react-lifecycles-compat

Developer Guide

BETA

Typescript

No

Module System

CommonJS

Node Version

8.11.1

NPM Version

5.6.0 Pull Requests

Open

28

Total

69

Closed

16

Merged

25

Issues

Open

4

Total

22

Closed

18

Releases

Unable to fetch releases

Languages

JavaScript

JavaScript (100%)

Developer

reactjs

Download Statistics

Total Downloads

Last Day

Last Week

Last Month

Last Year

GitHub Statistics

MIT License

459 Stars

105 Commits

26 Forks

15 Watchers

29 Branches

16 Contributors

Updated on Mar 03, 2025

Maintainers

View All 16 Contributors

Package Meta Information

Latest Version

3.0.4

Package Id

react-lifecycles-compat@3.0.4

Size

5.86 kB

NPM Version

5.6.0

Node Version

8.11.1

Published on

May 11, 2018

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

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Weekly Downloads

Monthly Downloads

Yearly Downloads

Dev Dependencies

camelcase chalk eslint eslint-config-es5 jest jest-cli prettier rollup rollup-plugin-replace rollup-plugin-uglify

react-lifecycles-compat

What is this project?

React version 17 will deprecate several of the class component API lifecycles: componentWillMount, componentWillReceiveProps, and componentWillUpdate. (Read the Update on Async rendering blog post to learn more about why.) A couple of new lifecycles are also being added to better support async rendering mode.

Typically, this type of change would require third party libraries to release a new major version in order to adhere to semver. However, the react-lifecycles-compat polyfill offers a way to use the new lifecycles with older versions of React as well (0.14.9+) so no breaking release is required. This enables shared libraries to support both older and newer versions of React simultaneously.

How can I use the polyfill

First, install the polyfill from NPM:

1# Yarn
2yarn add react-lifecycles-compat
3
4# NPM
5npm install react-lifecycles-compat --save

Next, update your component and replace any of the deprecated lifecycles with new ones introduced with React 16.3. (Refer to the React docs for examples of how to use the new lifecycles.)

Lastly, use the polyfill to make the new lifecycles work with older versions of React:

1import React from 'react';
2import {polyfill} from 'react-lifecycles-compat';
3
4class ExampleComponent extends React.Component {
5  static getDerivedStateFromProps(nextProps, prevState) {
6    // Normally this method would only work for React 16.3 and newer,
7    // But the polyfill will make it work for older versions also!
8  }
9
10  getSnapshotBeforeUpdate(prevProps, prevState) {
11    // Normally this method would only work for React 16.3 and newer,
12    // But the polyfill will make it work for older versions also!
13  }
14
15  // render() and other methods ...
16}
17
18// Polyfill your component so the new lifecycles will work with older versions of React:
19polyfill(ExampleComponent);
20
21export default ExampleComponent;

Which lifecycles are supported?

Currently, this polyfill supports static getDerivedStateFromProps and getSnapshotBeforeUpdate- both introduced in version 16.3.

Validation

Note that in order for the polyfill to work, none of the following lifecycles can be defined by your component: componentWillMount, componentWillReceiveProps, or componentWillUpdate.

Note also that if your component contains getSnapshotBeforeUpdate, componentDidUpdate must be defined as well.

An error will be thrown if any of the above conditions are not met.

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.

1

Code-Review

Determines if the project requires human code review before pull requests (aka merge requests) are merged.

0

Maintained

Determines if the project is "actively maintained".

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

SAST

Determines if the project uses static code analysis.

0

Vulnerabilities

Determines if the project has open, known unfixed vulnerabilities.

Reason

64 existing vulnerabilities detected

Details

Warn: Project is vulnerable to: GHSA-v6h2-p8h4-qcjw
Warn: Project is vulnerable to: GHSA-f8q6-p94x-37v3
Warn: Project is vulnerable to: GHSA-vh95-rmgr-6w4m
Warn: Project is vulnerable to: GHSA-xvch-5gv4-984h
Warn: Project is vulnerable to: GHSA-r683-j2x4-v87g
Warn: Project is vulnerable to: GHSA-662x-fhqg-9p8v
Warn: Project is vulnerable to: GHSA-394c-5j6w-4xmx
Warn: Project is vulnerable to: GHSA-78cj-fxph-m83p
Warn: Project is vulnerable to: GHSA-fhg7-m89q-25r3
Warn: Project is vulnerable to: GHSA-mvjj-gqq2-p4hw
Warn: Project is vulnerable to: GHSA-6chw-6frg-f759
Warn: Project is vulnerable to: GHSA-v88g-cgmw-v5xw
Warn: Project is vulnerable to: GHSA-93q8-gq69-wqmw
Warn: Project is vulnerable to: GHSA-fwr7-v2mv-hh25
Warn: Project is vulnerable to: GHSA-67hx-6x53-jw92
Warn: Project is vulnerable to: GHSA-cwfw-4gq5-mrqx
Warn: Project is vulnerable to: GHSA-g95f-p29q-9xw4
Warn: Project is vulnerable to: GHSA-grv7-fg5c-xmjg
Warn: Project is vulnerable to: GHSA-3xgq-45jj-v275
Warn: Project is vulnerable to: GHSA-rq8g-5pc5-wrhr
Warn: Project is vulnerable to: GHSA-hr2v-3952-633q
Warn: Project is vulnerable to: GHSA-qrmc-fj45-qfc2
Warn: Project is vulnerable to: GHSA-8r6j-v8pm-fqw3
Warn: Project is vulnerable to: MAL-2023-462
Warn: Project is vulnerable to: GHSA-w457-6q6x-cgp9
Warn: Project is vulnerable to: GHSA-62gr-4qp9-h98f
Warn: Project is vulnerable to: GHSA-f52g-6jhx-586p
Warn: Project is vulnerable to: GHSA-2cf5-4w76-r9qv
Warn: Project is vulnerable to: GHSA-3cqr-58rm-57f8
Warn: Project is vulnerable to: GHSA-g9r4-xpmj-mj65
Warn: Project is vulnerable to: GHSA-q2c6-c6pm-g3gh
Warn: Project is vulnerable to: GHSA-765h-qjxv-5f44
Warn: Project is vulnerable to: GHSA-f2jv-r9rf-7988
Warn: Project is vulnerable to: GHSA-44pw-h2cw-w3vq
Warn: Project is vulnerable to: GHSA-jp4x-w63m-7wgm
Warn: Project is vulnerable to: GHSA-c429-5p7v-vgjp
Warn: Project is vulnerable to: GHSA-43f8-2h32-f4cj
Warn: Project is vulnerable to: GHSA-qqgx-2p2h-9c37
Warn: Project is vulnerable to: GHSA-896r-f27r-55mw
Warn: Project is vulnerable to: GHSA-9c47-m6qq-7p4h
Warn: Project is vulnerable to: GHSA-p6mc-m468-83gw
Warn: Project is vulnerable to: GHSA-29mw-wpgm-hmr9
Warn: Project is vulnerable to: GHSA-35jh-r3h4-6jhm
Warn: Project is vulnerable to: GHSA-4xcv-9jjx-gfj3
Warn: Project is vulnerable to: GHSA-f9cm-qmx5-m98h
Warn: Project is vulnerable to: GHSA-7wpw-2hjm-89gp
Warn: Project is vulnerable to: GHSA-952p-6rrq-rcjv
Warn: Project is vulnerable to: GHSA-5fw9-fq32-wv5p
Warn: Project is vulnerable to: GHSA-hj48-42vr-x3v9
Warn: Project is vulnerable to: GHSA-hrpp-h998-j3pp
Warn: Project is vulnerable to: GHSA-6g33-f262-xjp4
Warn: Project is vulnerable to: GHSA-p8p7-x288-28g6
Warn: Project is vulnerable to: GHSA-gcx4-mw62-g8wm
Warn: Project is vulnerable to: GHSA-c2qf-rxjj-qqgw
Warn: Project is vulnerable to: GHSA-mf6x-7mm4-x2g7
Warn: Project is vulnerable to: GHSA-j44m-qm6p-hp7m
Warn: Project is vulnerable to: GHSA-3jfq-g458-7qm9
Warn: Project is vulnerable to: GHSA-5955-9wpr-37jh
Warn: Project is vulnerable to: GHSA-f5x3-32g6-xq36
Warn: Project is vulnerable to: GHSA-jgrx-mgxx-jf9v
Warn: Project is vulnerable to: GHSA-72xf-g2v4-qvf3
Warn: Project is vulnerable to: GHSA-3h5v-q93c-6h6q
Warn: Project is vulnerable to: GHSA-c4w7-xm78-47vh
Warn: Project is vulnerable to: GHSA-p9pc-299p-vxgp

Score

1.9

/10

Last Scanned on 2025-06-30

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