Package Health Score

74 / 100

security
No known security issues
popularity
Influential project
maintenance
Sustainable
community
Sustainable

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Security

No known security issues

All security vulnerabilities belong to production dependencies of direct and indirect packages.

Security and license risk for significant versions

Version				Vulnerabilities	License Risk
1.3.0	\|	05/2023	Popular	0 C 0 H 0 M 0 L	0 H 0 M 0 L
1.2.0	\|	10/2018		0 C 0 H 0 M 0 L	0 H 0 M 0 L
1.1.2	\|	09/2017		0 C 0 H 0 M 0 L	0 H 0 M 0 L
1.0.1	\|	06/2015		0 C 0 H 0 M 0 L	0 H 0 M 0 L

License

Apache-2.0

Security Policy

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Popularity

Influential project

Weekly Downloads (13,719,211)

GitHub Stars: 659
Forks: 45
Contributors: 4

Direct Usage Popularity

The npm package fast-diff receives a total of 13,719,211 downloads a week. As such, we scored fast-diff popularity level to be Influential project.

Based on project statistics from the GitHub repository for the npm package fast-diff, we found that it has been starred 659 times.

Downloads are calculated as moving averages for a period of the last 12 months, excluding weekends and known missing data points.

Community

Sustainable

Readme.md: Yes
Contributing.md: No
Code of Conduct: No
Contributors: 4
Funding: No

This project has seen only 10 or less contributors.

We found a way for you to contribute to the project! Looks like fast-diff is missing a Code of Conduct.

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Maintenance

Sustainable

Commit Frequency

No Recent Commits

Open Issues: 1
Open PR: 0
Last Release: 2 years ago
Last Commit: 2 years ago

Further analysis of the maintenance status of fast-diff based on released npm versions cadence, the repository activity, and other data points determined that its maintenance is Sustainable.

An important project maintenance signal to consider for fast-diff is that it hasn't seen any new versions released to npm in the past 12 months, and could be considered as a discontinued project, or that which receives low attention from its maintainers.

As a healthy sign for on-going project maintenance, we found that the GitHub repository had at least 1 pull request or issue interacted with by the community.

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Package

Node.js Compatibility: not defined

Age: 10 years
Dependencies: 0 Direct
Versions: 8
Install Size: 52.3 kB
Dist-tags: 1
# of Files: 5
Maintainers: 2
TS Typings: Yes

fast-diff has more than a single and default latest tag published for the npm package. This means, there may be other tags available for this package, such as next to indicate future releases, or stable to indicate stable releases.

Not sure how to use fast-diff?

To help you get started, we've collected the most common ways that fast-diff is being used within popular public projects.

elm-tooling / elm-language-server / src / util / diff.ts View on Github

export function getTextRangeChanges(
  before: string,
  after: string,
): Promise {
  const newRanges: TextEdit[] = [];
  let lineNumber = 0;
  let column = 0;

  const parts = diff(before, after);

  // Loop over every part, keeping track of:
  // 1. The current line no. and column in the `after` string
  // 2. Character ranges for all "added" parts in the `after` string
  parts.forEach(part =&gt; {
    const startLineNumber = lineNumber;
    const startColumn = column;
    if (part[0] === 0 || part[0] === -1) {
      // Split the part into lines. Loop through these lines to find
      // the line no. and column at the end of this part.
      const substring = part[1];
      const lines = substring.split("\n");
      lines.forEach((line, lineIndex) =&gt; {
        // The first `line` is actually just a continuation of the last line
        if (lineIndex === 0) {
          column += line.length;

View more ways to use fast-diff

Fast Diff

This is a simplified import of the excellent diff-match-patch library by Neil Fraser into the Node.js environment. The match and patch parts are removed, as well as all the extra diff options. What remains is incredibly fast diffing between two strings.

The diff function is an implementation of "An O(ND) Difference Algorithm and its Variations" (Myers, 1986) with the suggested divide and conquer strategy along with several optimizations Neil added.

var diff = require('fast-diff');

var good = 'Good dog';
var bad = 'Bad dog';

var result = diff(good, bad);
// [[-1, "Goo"], [1, "Ba"], [0, "d dog"]]

// Respect suggested edit location (cursor position), added in v1.1
diff('aaa', 'aaaa', 1)
// [[0, "a"], [1, "a"], [0, "aa"]]

// For convenience
diff.INSERT === 1;
diff.EQUAL === 0;
diff.DELETE === -1;

fast-diff development dependencies

lodash nyc seedrandom

FAQs

What is fast-diff?

Fast Javascript text diff. Visit Snyk Advisor to see a full health score report for fast-diff, including popularity, security, maintenance & community analysis.

Is fast-diff popular?

The npm package fast-diff receives a total of 13,719,211 weekly downloads. As such, fast-diff popularity was classified as an influential project. Visit the popularity section on Snyk Advisor to see the full health analysis.

Is fast-diff well maintained?

We found indications that fast-diff maintenance is sustainable demonstrating some project activity. We saw a total of 4 open source contributors collaborating on the project. See the full package health analysis to learn more about the package maintenance status.

Is fast-diff safe to use?

The npm package fast-diff was scanned for known vulnerabilities and missing license, and no issues were found. Thus the package was deemed as safe to use. See the full health analysis review.

Last updated on 21 December-2024, at 01:51 (UTC).

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fast-diff

Fast Javascript text diff For more information about how to use this package see README

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Package Health Score

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Security

Security and license risk for significant versions

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Popularity

Weekly Downloads (13,719,211)

Direct Usage Popularity

Community

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Maintenance

Commit Frequency

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Package

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Fast Diff

fast-diff development dependencies

FAQs

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Is fast-diff safe to use?

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Package Health Score

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Security and license risk for significant versions

Is your project affected by vulnerabilities?

Weekly Downloads (13,719,211)

Direct Usage Popularity

Embed Package Health Score Badge

Commit Frequency

Keep your project healthy

Check your package.json

Snyk Vulnerability Scanner

Not sure how to use fast-diff?

Fast Diff

fast-diff development dependencies

FAQs

What is fast-diff?

Is fast-diff popular?

Is fast-diff well maintained?

Is fast-diff safe to use?

Build a secure application checklist

Select a recommended open source package

Scan your app for vulnerabilities

Source Code

Open Source

Container

Config

Fix identified vulnerabilities

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