natural-compare vs string-similarity vs string-comparison vs fuzzyset.js
String Similarity and Comparison Libraries Comparison
1 Year
natural-comparestring-similaritystring-comparisonfuzzyset.jsSimilar Packages:
What's String Similarity and Comparison Libraries?

String similarity and comparison libraries are essential tools in web development that enable developers to assess how closely two strings match or differ. These libraries can be used for various applications, including search optimization, data deduplication, and user input validation. They provide algorithms and methods to quantify the similarity between strings, making it easier to implement features like fuzzy searching, sorting, and matching in applications. Each library offers unique approaches and algorithms tailored for specific use cases, allowing developers to choose the most suitable one for their needs.

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natural-compare40,932,042110-09 years agoMIT
string-similarity2,562,0442,525-234 years agoISC
string-comparison39,1885333.8 kB1a year agoMIT
fuzzyset.js22,7381,37335.6 kB13 years agosee LICENSE.md
Feature Comparison: natural-compare vs string-similarity vs string-comparison vs fuzzyset.js

Matching Algorithm

  • natural-compare:

    Natural-compare uses a natural sorting algorithm that compares strings in a way that mimics human intuition. It handles numbers within strings intelligently, allowing for proper ordering of mixed content like 'file2', 'file10', and 'file20'.

  • string-similarity:

    String-similarity offers multiple algorithms for calculating similarity scores, including Jaro-Winkler and Levenshtein distance. This flexibility allows developers to choose the most appropriate method for their specific requirements.

  • string-comparison:

    String-comparison provides basic string comparison functions, focusing on equality and simple similarity checks. It is less complex and does not implement advanced algorithms, making it suitable for straightforward use cases.

  • fuzzyset.js:

    Fuzzyset.js implements a fuzzy matching algorithm that allows for approximate string matching. It utilizes a trie structure to efficiently store and retrieve strings, enabling quick lookups and similarity scoring based on user-defined thresholds.

Performance

  • natural-compare:

    Natural-compare is lightweight and performs well for sorting operations, but its performance may degrade with very large datasets due to the nature of string comparisons involved in natural sorting.

  • string-similarity:

    String-similarity may have varying performance based on the algorithm used, with some methods being computationally intensive. It is best used in scenarios where detailed similarity analysis is required.

  • string-comparison:

    String-comparison is designed for simplicity and speed in basic comparisons, making it suitable for applications where performance is critical and complex algorithms are unnecessary.

  • fuzzyset.js:

    Fuzzyset.js is optimized for performance with its trie-based structure, allowing for efficient storage and retrieval of strings. However, performance may vary based on the size of the dataset and the complexity of the queries.

Use Cases

  • natural-compare:

    Natural-compare is ideal for sorting tasks where human-readable order is necessary, such as displaying lists of items or filenames in a way that makes sense to users.

  • string-similarity:

    String-similarity is versatile and can be used in applications requiring detailed string analysis, such as plagiarism detection, data deduplication, and recommendation systems.

  • string-comparison:

    String-comparison is suitable for applications needing basic string equality checks and simple comparisons, such as form validation or basic filtering.

  • fuzzyset.js:

    Fuzzyset.js is particularly useful for applications requiring fuzzy search capabilities, such as search bars, autocomplete features, and data cleaning processes where approximate matches are acceptable.

Ease of Use

  • natural-compare:

    Natural-compare has a simple API that makes it easy to implement natural sorting in applications, requiring minimal setup and configuration.

  • string-similarity:

    String-similarity has a user-friendly API, but users may need to familiarize themselves with different algorithms and their appropriate use cases for optimal results.

  • string-comparison:

    String-comparison is very easy to use, with a minimalistic API that allows for quick implementation of basic comparison functions without any complex setup.

  • fuzzyset.js:

    Fuzzyset.js is easy to integrate and use, with a straightforward API for adding strings and performing searches. However, understanding fuzzy matching concepts may require some learning.

Community and Support

  • natural-compare:

    Natural-compare benefits from a moderate user base, providing decent community support and resources for troubleshooting and implementation guidance.

  • string-similarity:

    String-similarity has a growing community, offering a range of resources and examples. Its versatility in string analysis makes it a popular choice among developers.

  • string-comparison:

    String-comparison has a minimal community presence, which may result in limited support. However, its basic functionality is straightforward enough for most developers to use without issues.

  • fuzzyset.js:

    Fuzzyset.js has a smaller community, which may limit the availability of resources and support. However, its simplicity makes it easy to understand and implement without extensive documentation.

How to Choose: natural-compare vs string-similarity vs string-comparison vs fuzzyset.js
  • natural-compare:

    Opt for natural-compare when you require a sorting mechanism that respects natural language order, making it suitable for sorting strings in a way that is intuitive to users, such as sorting file names or lists of items.

  • string-similarity:

    Use string-similarity when you need a library that provides various algorithms for calculating similarity scores, such as Jaro-Winkler and Levenshtein distance, making it versatile for applications that require detailed string analysis.

  • string-comparison:

    Select string-comparison if you need a straightforward library for basic string comparison tasks, including equality checks and simple similarity metrics, without the overhead of more complex algorithms.

  • fuzzyset.js:

    Choose fuzzyset.js if you need a library focused on fuzzy string matching, particularly for applications that require searching and ranking of similar strings based on a defined threshold. It is ideal for scenarios like autocomplete features or search suggestions.

README for natural-compare
@version    1.4.0
@date       2015-10-26
@stability  3 - Stable

Natural Compare – Build Coverage

Compare strings containing a mix of letters and numbers in the way a human being would in sort order. This is described as a "natural ordering".

Standard sorting:   Natural order sorting:
    img1.png            img1.png
    img10.png           img2.png
    img12.png           img10.png
    img2.png            img12.png

String.naturalCompare returns a number indicating whether a reference string comes before or after or is the same as the given string in sort order. Use it with builtin sort() function.

Installation

  • In browser
<script src=min.natural-compare.js></script>
  • In node.js: npm install natural-compare-lite
require("natural-compare-lite")

Usage

// Simple case sensitive example
var a = ["z1.doc", "z10.doc", "z17.doc", "z2.doc", "z23.doc", "z3.doc"];
a.sort(String.naturalCompare);
// ["z1.doc", "z2.doc", "z3.doc", "z10.doc", "z17.doc", "z23.doc"]

// Use wrapper function for case insensitivity
a.sort(function(a, b){
  return String.naturalCompare(a.toLowerCase(), b.toLowerCase());
})

// In most cases we want to sort an array of objects
var a = [ {"street":"350 5th Ave", "room":"A-1021"}
        , {"street":"350 5th Ave", "room":"A-21046-b"} ];

// sort by street, then by room
a.sort(function(a, b){
  return String.naturalCompare(a.street, b.street) || String.naturalCompare(a.room, b.room);
})

// When text transformation is needed (eg toLowerCase()),
// it is best for performance to keep
// transformed key in that object.
// There are no need to do text transformation
// on each comparision when sorting.
var a = [ {"make":"Audi", "model":"A6"}
        , {"make":"Kia",  "model":"Rio"} ];

// sort by make, then by model
a.map(function(car){
  car.sort_key = (car.make + " " + car.model).toLowerCase();
})
a.sort(function(a, b){
  return String.naturalCompare(a.sort_key, b.sort_key);
})
  • Works well with dates in ISO format eg "Rev 2012-07-26.doc".

Custom alphabet

It is possible to configure a custom alphabet to achieve a desired order.

// Estonian alphabet
String.alphabet = "ABDEFGHIJKLMNOPRSŠZŽTUVÕÄÖÜXYabdefghijklmnoprsšzžtuvõäöüxy"
["t", "z", "x", "õ"].sort(String.naturalCompare)
// ["z", "t", "õ", "x"]

// Russian alphabet
String.alphabet = "АБВГДЕЁЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдеёжзийклмнопрстуфхцчшщъыьэюя"
["Ё", "А", "Б"].sort(String.naturalCompare)
// ["А", "Б", "Ё"]

External links

  • [GitHub repo][https://github.com/litejs/natural-compare-lite]
  • jsperf test

Licence

Copyright (c) 2012-2015 Lauri Rooden <lauri@rooden.ee>
The MIT License