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indexify

v0.3.0

Published

A simple collection that will automatically update multiple indexes.

Downloads

16

Readme

README

Sometimes you want to keep track of a collection of objects, but have that collection indexed by different properties. This is where indexify might be useful:

indexify = require('indexify');

var persons = indexify([
  { key: 'id',  extract: function(obj) { return obj.id; }, unique: true },
  { key: 'age', extract: function(obj) { return obj.age; }, unique: false }
]);

persons.add({ 
  id: '09707', age: 37
});
persons.add({ 
  id: '08227', age: 37
});

persons.by.age(37);     // two persons (an array)
persons.by.id('09707'); // one person (an object)

That's basically it. The only other thing you're currently able to do is remove objects from the collection:

persons.remove({ 
  id: '09707', age: 37
});

Changes

0.3

  • Add the ability to search for multiple values: posts.by.tags('pet', 'house').

0.2

  • If the extract function returns an array, then the index will be updated based on the individual elements in the array.