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simple-data-cache
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This is a javascript implementation of a dictionary data structure that represents a very simple, but effective, data cache.
This implementation does not store any data to a database or localStorage; therefore, the data stored in the data cache, or dictionary, will not persist between instances unless additional custom code is written to provide that functionality. This implemention is simply an in-memory data store used to store key/value pairs. Nevertheless, this simple data cache can be very useful.
For specific examples and documentation, see the below sections
Although this implementation is designed to be used with
Node.js, it could be used in other contexts with minor
modifications. This implementation does not have any external dependencies
that would preclude it from being used in the browser--just include it with a
<script>
tag and it should be good to go. Disclaimer: I have not tested
this implementation in any other context/environment; only tested with node.js
Install with npm :
npm install simple-data-cache --save
Basic usage example below. Note: it may not cover all the available methods, rather just highlights the main functionality to get up and running with this data structure. For a description of all the methods, see the API section.
var SimpleDataCache = require('simple-data-cache');
var sdc = new SimpleDataCache();
sdc.isEmpty();
// --> true
sdc.set('key1', 'value1');
sdc.set('key2', 'value2');
sdc.set('key3', 'value3');
sdc.size();
// --> 3
sdc.isEmpty();
// --> false
sdc.has('key2');
// --> true
sdc.has('key4');
// --> false
sdc.get('key3');
// ==> 'value3'
sdc.keys();
// --> ['key1', 'key2', 'key3']
sdc.values();
// --> ['value1', 'value2', 'value3']
sdc.clear();
sdc.isEmpty();
// --> true
Available methods for a Simple Data Cache instance:
Returns the size, or number of items in the data cache
Determines if the data cache is empty or not. Returns true if is empty, false otherwise.
Adds the key/value pair to the data cache
Determines if the data cache contains the key
Removes the item with the matching key from the data cache
Returns the item with the matching key from the data cache
Returns an array of all the keys stored in the data cache
Returns an array of all the values stored in the data cache
Returns all the key/value pairs stored in the data cache
Clears the data cache of all key/value pairs
MIT © Jason Jones
FAQs
JavaScript implementation of a dictionary data structure
The npm package simple-data-cache receives a total of 0 weekly downloads. As such, simple-data-cache popularity was classified as not popular.
We found that simple-data-cache demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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