npmpackage.info

Gathering detailed insights and metrics for preact

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Gathering detailed insights and metrics for preact

preact

⚛️ Fast 3kB React alternative with the same modern API. Components & Virtual DOM.

10.25.0

36,876

MIT

JavaScript

4.63 kB

442,512,948 4.4

Installations

npm install preact

Pull Requests

Open

84

Total

2,441

Closed

635

Merged

1,722

Issues

Open

74

Total

1,835

Closed

1,761

Releases

214

10.25.0

Published on 22 Nov 2024

10.24.3

Published on 14 Oct 2024

10.24.2

Published on 04 Oct 2024

10.24.1

Published on 24 Sept 2024

10.24.0

Published on 14 Sept 2024

10.23.2

Published on 12 Aug 2024

View all 214 releases

Developer

preactjs

Developer Guide

BETA

Module System

CommonJS, ESM

Min. Node Version

Typescript Support

Yes

Node Version

20.13.0

NPM Version

10.5.2 Statistics

36,876 Stars

5,763 Commits

1,951 Forks

397 Watching

216 Branches

325 Contributors

Updated on 28 Nov 2024

Bundle Size

11.67 kB

Minified

4.63 kB

Minified + Gzipped

Bundlephobia

Languages

JavaScript (95.63%)

TypeScript (2.61%)

HTML (1.76%)

Total Downloads

Cumulative downloads

Total Downloads

442,512,948

Last day

-0.1%

884,653

Compared to previous day

Last week

3.3%

4,592,534

Compared to previous week

Last month

11.2%

19,149,838

Compared to previous month

Last year

52.5%

186,031,344

Compared to previous year

Daily Downloads

Weekly Downloads

Monthly Downloads

Yearly Downloads

Versions

Fast 3kB alternative to React with the same modern API.

All the power of Virtual DOM components, without the overhead:

Familiar React API & patterns: ES6 Class, hooks, and Functional Components
Extensive React compatibility via a simple preact/compat alias
Everything you need: JSX, VDOM, DevTools, HMR, SSR.
Highly optimized diff algorithm and seamless hydration from Server Side Rendering
Supports all modern browsers and IE11
Transparent asynchronous rendering with a pluggable scheduler

💁 More information at the Preact Website ➞

You can find some awesome libraries in the awesome-preact list :sunglasses:

Getting Started

💁 Note: You don't need ES2015 to use Preact... but give it a try!

Tutorial: Building UI with Preact

With Preact, you create user interfaces by assembling trees of components and elements. Components are functions or classes that return a description of what their tree should output. These descriptions are typically written in JSX (shown underneath), or HTM which leverages standard JavaScript Tagged Templates. Both syntaxes can express trees of elements with "props" (similar to HTML attributes) and children.

To get started using Preact, first look at the render() function. This function accepts a tree description and creates the structure described. Next, it appends this structure to a parent DOM element provided as the second argument. Future calls to render() will reuse the existing tree and update it in-place in the DOM. Internally, render() will calculate the difference from previous outputted structures in an attempt to perform as few DOM operations as possible.

1import { h, render } from 'preact';
2// Tells babel to use h for JSX. It's better to configure this globally.
3// See https://babeljs.io/docs/en/babel-plugin-transform-react-jsx#usage
4// In tsconfig you can specify this with the jsxFactory
5/** @jsx h */
6
7// create our tree and append it to document.body:
8render(
9	<main>
10		<h1>Hello</h1>
11	</main>,
12	document.body
13);
14
15// update the tree in-place:
16render(
17	<main>
18		<h1>Hello World!</h1>
19	</main>,
20	document.body
21);
22// ^ this second invocation of render(...) will use a single DOM call to update the text of the <h1>

Hooray! render() has taken our structure and output a User Interface! This approach demonstrates a simple case, but would be difficult to use as an application grows in complexity. Each change would be forced to calculate the difference between the current and updated structure for the entire application. Components can help here – by dividing the User Interface into nested Components each can calculate their difference from their mounted point. Here's an example:

1import { render, h } from 'preact';
2import { useState } from 'preact/hooks';
3
4/** @jsx h */
5
6const App = () => {
7	const [input, setInput] = useState('');
8
9	return (
10		<div>
11			<p>Do you agree to the statement: "Preact is awesome"?</p>
12			<input value={input} onInput={e => setInput(e.target.value)} />
13		</div>
14	);
15};
16
17render(<App />, document.body);

Backers

Support us with a monthly donation and help us continue our activities. [Become a backer]

License

MIT

Stable Version

The latest stable version of the package.

Stable Version

10.25.0

MODERATE

0/10

Summary

HTML Injection in preact

Affected Versions

>= 10.0.0-alpha.0, <= 10.0.0-beta.0

Patched Versions

10.0.0-beta.1

10

Maintained

Determines if the project is "actively maintained".

10

Dangerous-Workflow

Determines if the project's GitHub Action workflows avoid dangerous patterns.

10

Code-Review

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

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

CII-Best-Practices

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

0

Token-Permissions

Determines if the project's workflows follow the principle of least privilege.

0

Pinned-Dependencies

Determines if the project has declared and pinned the dependencies of its build process.

Reason

dependency not pinned by hash detected -- score normalized to 0

Details

Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/benchmarks.yml:14: update your workflow using https://app.stepsecurity.io/secureworkflow/preactjs/preact/benchmarks.yml/main?enable=pin
Warn: third-party GitHubAction not pinned by hash: .github/workflows/benchmarks.yml:19: update your workflow using https://app.stepsecurity.io/secureworkflow/preactjs/preact/benchmarks.yml/main?enable=pin
Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/benchmarks.yml:26: update your workflow using https://app.stepsecurity.io/secureworkflow/preactjs/preact/benchmarks.yml/main?enable=pin
Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/build-test.yml:23: update your workflow using https://app.stepsecurity.io/secureworkflow/preactjs/preact/build-test.yml/main?enable=pin
Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/build-test.yml:26: update your workflow using https://app.stepsecurity.io/secureworkflow/preactjs/preact/build-test.yml/main?enable=pin
Warn: third-party GitHubAction not pinned by hash: .github/workflows/build-test.yml:42: update your workflow using https://app.stepsecurity.io/secureworkflow/preactjs/preact/build-test.yml/main?enable=pin
Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/build-test.yml:52: update your workflow using https://app.stepsecurity.io/secureworkflow/preactjs/preact/build-test.yml/main?enable=pin
Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/ci.yml:21: update your workflow using https://app.stepsecurity.io/secureworkflow/preactjs/preact/ci.yml/main?enable=pin
Warn: third-party GitHubAction not pinned by hash: .github/workflows/ci.yml:22: update your workflow using https://app.stepsecurity.io/secureworkflow/preactjs/preact/ci.yml/main?enable=pin
Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/pr-reporter.yml:22: update your workflow using https://app.stepsecurity.io/secureworkflow/preactjs/preact/pr-reporter.yml/main?enable=pin
Warn: third-party GitHubAction not pinned by hash: .github/workflows/pr-reporter.yml:23: update your workflow using https://app.stepsecurity.io/secureworkflow/preactjs/preact/pr-reporter.yml/main?enable=pin
Warn: third-party GitHubAction not pinned by hash: .github/workflows/pr-reporter.yml:42: update your workflow using https://app.stepsecurity.io/secureworkflow/preactjs/preact/pr-reporter.yml/main?enable=pin
Warn: third-party GitHubAction not pinned by hash: .github/workflows/pr-reporter.yml:61: update your workflow using https://app.stepsecurity.io/secureworkflow/preactjs/preact/pr-reporter.yml/main?enable=pin
Warn: third-party GitHubAction not pinned by hash: .github/workflows/pr-reporter.yml:71: update your workflow using https://app.stepsecurity.io/secureworkflow/preactjs/preact/pr-reporter.yml/main?enable=pin
Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/release.yml:13: update your workflow using https://app.stepsecurity.io/secureworkflow/preactjs/preact/release.yml/main?enable=pin
Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/release.yml:14: update your workflow using https://app.stepsecurity.io/secureworkflow/preactjs/preact/release.yml/main?enable=pin
Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/release.yml:19: update your workflow using https://app.stepsecurity.io/secureworkflow/preactjs/preact/release.yml/main?enable=pin
Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/release.yml:25: update your workflow using https://app.stepsecurity.io/secureworkflow/preactjs/preact/release.yml/main?enable=pin
Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/run-bench.yml:34: update your workflow using https://app.stepsecurity.io/secureworkflow/preactjs/preact/run-bench.yml/main?enable=pin
Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/run-bench.yml:37: update your workflow using https://app.stepsecurity.io/secureworkflow/preactjs/preact/run-bench.yml/main?enable=pin
Warn: third-party GitHubAction not pinned by hash: .github/workflows/run-bench.yml:45: update your workflow using https://app.stepsecurity.io/secureworkflow/preactjs/preact/run-bench.yml/main?enable=pin
Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/run-bench.yml:53: update your workflow using https://app.stepsecurity.io/secureworkflow/preactjs/preact/run-bench.yml/main?enable=pin
Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/run-bench.yml:62: update your workflow using https://app.stepsecurity.io/secureworkflow/preactjs/preact/run-bench.yml/main?enable=pin
Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/run-bench.yml:113: update your workflow using https://app.stepsecurity.io/secureworkflow/preactjs/preact/run-bench.yml/main?enable=pin
Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/run-bench.yml:118: update your workflow using https://app.stepsecurity.io/secureworkflow/preactjs/preact/run-bench.yml/main?enable=pin
Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/single-bench.yml:60: update your workflow using https://app.stepsecurity.io/secureworkflow/preactjs/preact/single-bench.yml/main?enable=pin
Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/single-bench.yml:71: update your workflow using https://app.stepsecurity.io/secureworkflow/preactjs/preact/single-bench.yml/main?enable=pin
Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/single-bench.yml:76: update your workflow using https://app.stepsecurity.io/secureworkflow/preactjs/preact/single-bench.yml/main?enable=pin
Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/size.yml:10: update your workflow using https://app.stepsecurity.io/secureworkflow/preactjs/preact/size.yml/main?enable=pin
Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/size.yml:11: update your workflow using https://app.stepsecurity.io/secureworkflow/preactjs/preact/size.yml/main?enable=pin
Warn: third-party GitHubAction not pinned by hash: .github/workflows/size.yml:16: update your workflow using https://app.stepsecurity.io/secureworkflow/preactjs/preact/size.yml/main?enable=pin
Info: 0 out of 22 GitHub-owned GitHubAction dependencies pinned
Info: 0 out of 9 third-party GitHubAction dependencies pinned
Info: 1 out of 1 npmCommand dependencies pinned

0

Fuzzing

Determines if the project uses fuzzing.

0

Signed-Releases

Determines if the project cryptographically signs release artifacts.

0

Security-Policy

Determines if the project has published a security policy.

0

SAST

Determines if the project uses static code analysis.

0

Vulnerabilities

Determines if the project has open, known unfixed vulnerabilities.

Reason

54 existing vulnerabilities detected

Details

Warn: Project is vulnerable to: GHSA-67hx-6x53-jw92
Warn: Project is vulnerable to: GHSA-grv7-fg5c-xmjg
Warn: Project is vulnerable to: GHSA-3xgq-45jj-v275
Warn: Project is vulnerable to: GHSA-gxpj-cx7g-858c
Warn: Project is vulnerable to: GHSA-rc47-6667-2j5j
Warn: Project is vulnerable to: GHSA-78xj-cgh5-2h22
Warn: Project is vulnerable to: GHSA-2p57-rm9w-gvfp
Warn: Project is vulnerable to: GHSA-8cf7-32gw-wr33
Warn: Project is vulnerable to: GHSA-hjrf-2m68-5959
Warn: Project is vulnerable to: GHSA-qwph-4952-7xr6
Warn: Project is vulnerable to: GHSA-jg8v-48h5-wgxg
Warn: Project is vulnerable to: GHSA-36fh-84j7-cv5h
Warn: Project is vulnerable to: GHSA-29mw-wpgm-hmr9
Warn: Project is vulnerable to: GHSA-35jh-r3h4-6jhm
Warn: Project is vulnerable to: GHSA-952p-6rrq-rcjv
Warn: Project is vulnerable to: GHSA-f8q6-p94x-37v3
Warn: Project is vulnerable to: GHSA-hj48-42vr-x3v9
Warn: Project is vulnerable to: GHSA-hrpp-h998-j3pp
Warn: Project is vulnerable to: GHSA-c2qf-rxjj-qqgw
Warn: Project is vulnerable to: GHSA-gx6r-qc2v-3p3v
Warn: Project is vulnerable to: GHSA-fhg7-m89q-25r3
Warn: Project is vulnerable to: GHSA-6fc8-4gx4-v693
Warn: Project is vulnerable to: GHSA-3h5v-q93c-6h6q
Warn: Project is vulnerable to: GHSA-36jr-mh4h-2g58
Warn: Project is vulnerable to: GHSA-9c47-m6qq-7p4h
Warn: Project is vulnerable to: GHSA-9wv6-86v2-598j
Warn: Project is vulnerable to: GHSA-93q8-gq69-wqmw
Warn: Project is vulnerable to: GHSA-qwcr-r2fm-qrc7
Warn: Project is vulnerable to: GHSA-pxg6-pf52-xh8x
Warn: Project is vulnerable to: GHSA-ghr5-ch3p-vcr6
Warn: Project is vulnerable to: GHSA-74fj-2j2h-c42q
Warn: Project is vulnerable to: GHSA-pw2r-vq6v-hr8c
Warn: Project is vulnerable to: GHSA-jchw-25xp-jwwc
Warn: Project is vulnerable to: GHSA-cxjh-pqwp-8mfp
Warn: Project is vulnerable to: GHSA-4q6p-r6v2-jvc5
Warn: Project is vulnerable to: GHSA-896r-f27r-55mw
Warn: Project is vulnerable to: GHSA-3rfm-jhwj-7488
Warn: Project is vulnerable to: GHSA-hhq3-ff78-jv3g
Warn: Project is vulnerable to: GHSA-xvch-5gv4-984h
Warn: Project is vulnerable to: GHSA-7fh5-64p2-3v2j
Warn: Project is vulnerable to: GHSA-p8p7-x288-28g6
Warn: Project is vulnerable to: GHSA-gcx4-mw62-g8wm
Warn: Project is vulnerable to: GHSA-g4rg-993r-mgx7
Warn: Project is vulnerable to: GHSA-72xf-g2v4-qvf3
Warn: Project is vulnerable to: GHSA-pgw7-wx7w-2w33
Warn: Project is vulnerable to: GHSA-3cvr-822r-rqcc
Warn: Project is vulnerable to: GHSA-q768-x9m6-m9qp / GHSA-wqq4-5wpv-mx2g
Warn: Project is vulnerable to: GHSA-8qr4-xgw6-wmr3
Warn: Project is vulnerable to: GHSA-f772-66g8-q5h3
Warn: Project is vulnerable to: GHSA-5r9g-qh6m-jxff
Warn: Project is vulnerable to: GHSA-r6ch-mqf9-qc9w
Warn: Project is vulnerable to: GHSA-3787-6prv-h9w3
Warn: Project is vulnerable to: GHSA-9qxr-qj54-h672
Warn: Project is vulnerable to: GHSA-m4v8-wqvr-p9f7

Score

4.4

/10

Last Scanned on 2024-11-18

The Open Source Security Foundation is a cross-industry collaboration to improve the security of open source software (OSS). The Scorecard provides security health metrics for open source projects.

Learn More

Other packages similar to preact

Other packages similar to preact

preact

Installations

Pull Requests

84

2,441

635

1,722

Issues

74

1,835

1,761

Releases

Developer

Developer Guide

CommonJS, ESM

Yes

20.13.0

10.5.2

Statistics

Bundle Size

11.67 kB

4.63 kB

Languages

Total Downloads

442,512,948

Daily Downloads

Weekly Downloads

Monthly Downloads

Yearly Downloads

Dev Dependencies

💁 More information at the Preact Website ➞

Getting Started

Tutorial: Building UI with Preact

Sponsors

Backers

License

Stable Version

10.25.0

MODERATE

10

10

10

10

10

0

0

0

0

0

0

0

0

4.4

/10