Array filtering for node.js and the browser inspired by MongoDB.
Filtr is available on npm.
npm install filtr
A browser build is available in the repository's
Download the package and include either the normal or minimized build in your HTML header.
The browser build is fully AMD and CommonJS compatible and should work on all browser.
Filtr is still in early development so expect this list to grow.
filtr.getPathValuereturns the nested value in an object given a string path
filtr.comparatorsare available directly for quick value testing
var query = filtr $gt: 15 $lt: 25results = querytest 5 10 17 19 25 ;// results == [ 17, 19 ];
Testing also supports a number of options passed in as the second argument.
- spec: output modifer
- subset: (default) return an array containing a subset of matched items
- boolean: return an array of the original length with each item being a boolean when object passed or failed.
- index: return an array of numbers matching the index of passed object in the original array
- type: input modifier
- set: (default) assert that the data provided is an array. test each item.
- single: assert that the data provided is a single item. return boolean.
spec output modifier is an easy way to handle post processing of result sets
without having to match up a subset.
var query = filtr $gt: 15 $lt: 25results = querytest 5 10 17 19 25 spec: 'boolean' ;// results == [ false, false, true, true, false ];
var dataComplex =a: b: 100c: 'testC'd:e: 'world'a: b: 50c: 'testC'd:e: 'universe'e: 'galaxy';var query1 = filtr 'a.b': $gt: 75 $lt: 125 ;query2 = filtr 'a.b': $gt: 25 $lt: 75 'd.e': $eq: 'universe' ;var res1 = query1testdataComplex // result would have the first itemres2 = query1testdataComplex; // result would have the second item
A helper is also available that returns the value in a nested object given a string path.
var hello = filtrgetPathValue'd.e' dataComplex1;// hello == 'universe'
Please post issues to GitHub Issues.
A browser suite is also available at
test/browser/index.js. The same test definitions are
used in both contexts.
Interested in contributing? Fork to get started. Contact @logicalparadox if you are interested in being regular contributor.
(The MIT License)
Copyright (c) 2011-2012 Jake Luer email@example.com
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