fontfaceobserver

npmv2.3.0

Detect if web fonts are available

Not recommended for new projects

No — fontfaceobserver should not be adopted for new projects. Last published 1577 days ago.

?Adoption: grade ?, Not reported by this registry.
No download data reported for this package yet.
FMaintenance: grade F, Failing.
Last published 1577 days ago.
AWeight: grade A, Excellent.
Zero runtime dependencies, about 33 KB installed.
BSupply chain: grade B, Good.
This package has a single maintainer (bus factor of 1).
ALicense: grade A, Excellent.
BSD-2-Clause — permissive, with no copyleft found in the dependency tree.

Grades are computed deterministically from registry metadata collected by PackageGraph — downloads, dependents, publish dates, the resolved dependency tree, maintainer count, and declared licenses. No third-party scores are used.

Install cost

What you actually take on by adding fontfaceobserver to a project.

Direct dependencies

Runtime packages this one declares itself.

Total installed

Distinct packages in the full runtime tree, deduplicated the way a package manager would.

33 KB

Install size

Unpacked size of this package plus its entire runtime tree.

—

Tree depth

Longest resolved dependency chain below this package.

Compatibility

Node.js: No constraint declared
Module format: CommonJS only
TypeScript: No bundled types
Install scripts: None

Quick start

A usage example from the fontfaceobserver README.

jsFull README ↗

var font = new FontFaceObserver('My Family', {
  weight: 400
});

font.load().then(function () {
  console.log('Font is available');
}, function () {
  console.log('Font is not available');
});

fontfaceobserver vs the alternatives

Packages solving a similar problem in the npm ecosystem, compared on the signals that drive an adoption decision.

Package	Weekly downloads	Dependents	License	Last release
fontfaceobserverthis page	0	1	BSD-2-Clause	4 years ago
expo-font	0	3	MIT	1 day ago

Dependencies

Declared by fontfaceobserver v2.3.0. Runtime dependencies are installed with the package; dev dependencies are not.

Dev (12)

closure-dom =0.2.6google-closure-compiler =v20220502grunt ^1.0.3grunt-contrib-clean ^2.0.1grunt-contrib-concat ^1.0.1grunt-contrib-jshint ^3.2.0grunt-exec ~1.0.0mocha ^10.0.0mocha-headless-chrome ^4.0.0promis =1.1.4sinon ^14.0.0unexpected ^13.0.0

Used by

Popular packages that depend on fontfaceobserver.

expo-fontnpm

Load fonts at runtime and use them in React Native components.

↓ 0/wk◈ 3 dependents⚖ MITTS

Relationship graph

Dependencies (left) and dependents (right) of fontfaceobserver.

fontfaceobserver dependencies dependents

Frequently installed together

exponpm

The Expo SDK

↓ 0/wk◈ 18 dependents⚖ MITTS

reactnpm

React is a JavaScript library for building user interfaces.

↓ 152.8M/wk◈ 82 dependents⚖ MIT

@types/nodenpm

TypeScript definitions for node

↓ 0/wk◈ 327 dependents⚖ MITTS

@types/reactnpm

TypeScript definitions for react

↓ 0/wk◈ 71 dependents⚖ MITTS

react-nativenpm

A framework for building native apps using React

↓ 0/wk◈ 30 dependents⚖ MIT

@testing-library/react-nativenpm

Simple and complete React Native testing utilities that encourage good testing practices.

↓ 0/wk◈ 10 dependents⚖ MITTS

Release history

No releases in the last two years, typically about 2 days apart.

Recent versions of fontfaceobserver
Version	Published	Size	License
2.3.0latest	4 years ago	33 KB	BSD-2-Clause
2.2.0	4 years ago	33 KB	BSD-3-Clause
2.1.0	7 years ago	33 KB	BSD-3-Clause
2.0.13	9 years ago	—	BSD-3-Clause
2.0.12	9 years ago	—	BSD-3-Clause
2.0.10	9 years ago	—	BSD-3-Clause
2.0.9	9 years ago	—	BSD-3-Clause
2.0.8	9 years ago	—	BSD-3-Clause
2.0.7	9 years ago	—	BSD-3-Clause
2.0.6	9 years ago	—	BSD-3-Clause
2.0.5	10 years ago	—	BSD-3-Clause
2.0.4	10 years ago	—	BSD-3-Clause
2.0.3	10 years ago	—	BSD-3-Clause
2.0.2	10 years ago	—	BSD-3-Clause
2.0.1	10 years ago	—	BSD-3-Clause

Overview

fontfaceobserver is an npm package that detect if web fonts are available. It has 1 known dependents in the graph. The latest version is 2.3.0, released under the BSD-2-Clause license.

Who should use it

Teams working in the npm ecosystem who need detect if web fonts are available and value a focused solution.

When not to use it

Consider an alternative if you need to have first-class TypeScript types out of the box, or if a more actively-maintained option better fits your npm stack.

Pros

Clear open-source license (BSD-2-Clause).

Cons

No bundled TypeScript types (may require a separate @types package).

Auto-generated from collected registry metadata. No external claims are inferred.

Maintainers

bramstein

Keywords

font font events font load font-face fontloader fonts web font

Frequently asked questions

Should I use fontfaceobserver?

No — fontfaceobserver should not be adopted for new projects. Last published 1577 days ago.

How do I install fontfaceobserver?

Run `npm install fontfaceobserver` to add fontfaceobserver to your npm project.

What license is fontfaceobserver released under?

fontfaceobserver is distributed under the BSD-2-Clause license.

How popular is fontfaceobserver?

npm does not publish download counts. Within PackageGraph's crawl, 1 known packages depend on fontfaceobserver.

Is fontfaceobserver still maintained?

The most recent release of fontfaceobserver (v2.3.0) was published 4 years ago.

Does fontfaceobserver run install scripts?

No. fontfaceobserver does not define preinstall, install, or postinstall scripts, so installing it does not execute publisher-supplied code.