FuzzyFind

FuzzyFind is a matching algorithm for filtering and ranking a list based on partial user input.

API

array fuzzyfind ( string $query , array $collection [, object $options ])

All Options

• accessor function: Function that transforms your items into strings.
• precision number: How precise you want your search to be, between 0 and 1.

Usage

var fuzzyfind = require('fuzzyfind')
var collection = [
    'migrations.py',
    'django_migrations.py',
    'django_admin_log.py',
    'api_user.doc',
    'user_group.doc',
    'users.txt',
    'accounts.txt'
]

console.log(fuzzyfind('djmi', collection))
[ 'django_migrations.py', 'django_admin_log.py' ]

If you want to pass in an array of anything other than a string you can also provide an accessor function as the third argument. This must return a string.

var fuzzyfind = require('fuzzyfind')
var collection = [
    { name: 'migrations.py', size: '12kb'},
    { name: 'django_migrations.py', size: '11kb'},
    { name: 'django_admin_log.py', size: '10kb'},
    { name: 'api_user.doc', size: '9kb'},
    { name: 'user_group.doc', size: '13kb'},
    { name: 'users.txt', size: '12kb'},
    { name: 'accounts.txt', size: '10kb'},
]

function accessorFn (obj) {
    return obj.name
}
console.log(fuzzyfind('djmi', collection, { accessor: accessorFn }))
[ 'django_migrations.py', 'django_admin_log.py' ]

Precision can also be defined in your search, if you want to be more inclusive in your results. The lower your precision the more matches you get, with a precision of 1 you want to match the full word, while a precision of 0 would be matching any letter in your query.

The size of the match is taking into account, so having less precision would just be adding more results to the end of your results.

To define precision:

var fuzzyfind = require('fuzzyfind')
var collection = [
    'migrations.py',
    'django_migrations.py',
    'django_admin_log.py',
    'api_user.doc',
    'user_group.doc',
    'users.txt',
    'accounts.txt'
]

console.log(fuzzyfind('djmi', collection, { precision: 0.5 }))
[ 'django_migrations.py', 'django_admin_log.py', 'migrations.py' ]

The algorithm was influenced by a blog post about fuzzy finding.