Gathering detailed insights and metrics for is-jpg
Gathering detailed insights and metrics for is-jpg
Installations
npm install is-jpgDeveloper Guide
BETA
Typescript
No
Module System
ESM
Min. Node Version
^12.20.0 || ^14.13.1 || >=16.0.0
Node Version
12.22.1
NPM Version
7.20.3
Score
99.5
Supply Chain
70.6
Quality
75.5
Maintenance
100
Vulnerability
100
License
Languages
1
JavaScript
JavaScript (100%)
Developer
sindresorhus
Download Statistics
Total Downloads
0
Last Day
0
Last Week
0
Last Month
0
Last Year
0
GitHub Statistics
MIT License
26 Stars
17 Commits
9 Forks
6 Watchers
1 Branches
2 Contributors
Updated on Jan 07, 2025
Sponsor this package
Maintainers
1
Package Meta Information
Latest Version
3.0.0
Package Id
is-jpg@3.0.0
Size
1.63 kB
NPM Version
7.20.3
Node Version
12.22.1
Published on
Sep 19, 2021
Total Downloads
Cumulative downloads
Total Downloads
NaN
Last Day
0%
NaN
Compared to previous day
Last Week
0%
NaN
Compared to previous week
Last Month
0%
NaN
Compared to previous month
Last Year
0%
NaN
Compared to previous year
Weekly Downloads
Monthly Downloads
Yearly Downloads
Dev Dependencies
3
is-jpg
Check if a Buffer/Uint8Array is a JPEG image
Install
1npm install is-jpg
Usage
Node.js
1import {readChunk} from 'read-chunk'; 2import isJpg from 'is-jpg'; 3 4const buffer = await readChunk('unicorn.jpg', {length: 3}); 5 6isJpg(buffer); 7//=> true
Browser
1const xhr = new XMLHttpRequest(); 2xhr.open('GET', 'unicorn.jpg'); 3xhr.responseType = 'arraybuffer'; 4 5xhr.onload = () => { 6 isJpg(new Uint8Array(this.response)); 7 //=> true 8}; 9 10xhr.send();
API
isJpg(buffer)
Accepts a Buffer (Node.js) or Uint8Array.
It only needs the first 3 bytes.
Related
- file-type - Detect the file type of a Buffer/Uint8Array
No vulnerabilities found.
Reason
no dangerous workflow patterns detected
Reason
security policy file detected
Details
- Info: security policy file detected: .github/security.md:1
- Info: Found linked content: .github/security.md:1
- Info: Found disclosure, vulnerability, and/or timelines in security policy: .github/security.md:1
- Info: Found text in security policy: .github/security.md:1
Reason
no binaries found in the repo
Reason
0 existing vulnerabilities detected
Reason
license file detected
Details
- Info: project has a license file: license:0
- Info: FSF or OSI recognized license: MIT License: license:0
Reason
Found 1/17 approved changesets -- score normalized to 0
Reason
0 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0
Reason
detected GitHub workflow tokens with excessive permissions
Details
- Warn: no topLevel permission defined: .github/workflows/main.yml:1
- Info: no jobLevel write permissions found
Reason
dependency not pinned by hash detected -- score normalized to 0
Details
- Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/main.yml:15: update your workflow using https://app.stepsecurity.io/secureworkflow/sindresorhus/is-jpg/main.yml/main?enable=pin
- Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/main.yml:16: update your workflow using https://app.stepsecurity.io/secureworkflow/sindresorhus/is-jpg/main.yml/main?enable=pin
- Warn: npmCommand not pinned by hash: .github/workflows/main.yml:20
- Info: 0 out of 2 GitHub-owned GitHubAction dependencies pinned
- Info: 0 out of 1 npmCommand dependencies pinned
Reason
no effort to earn an OpenSSF best practices badge detected
Reason
project is not fuzzed
Details
- Warn: no fuzzer integrations found
Reason
branch protection not enabled on development/release branches
Details
- Warn: branch protection not enabled for branch 'main'
Reason
SAST tool is not run on all commits -- score normalized to 0
Details
- Warn: 0 commits out of 1 are checked with a SAST tool
Score
4.1
/10
Last Scanned on 2025-07-07
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.
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