https://github.com/s00d/zset

queue with a weight in the memory
https://github.com/s00d/zset

Last synced: about 1 month ago
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queue with a weight in the memory

• Host: GitHub
• URL: https://github.com/s00d/zset
• Owner: s00d
• Created: 2018-07-12T18:29:02.000Z (over 6 years ago)
• Default Branch: master
• Last Pushed: 2023-01-03T15:16:11.000Z (about 2 years ago)
• Last Synced: 2024-11-14T19:13:40.636Z (about 2 months ago)
• Language: JavaScript
• Size: 550 KB
• Stars: 1
• Watchers: 3
• Forks: 0
• Open Issues: 8
• Metadata Files:
  • Readme: readme.md

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README

        
# ZSet - node queue with a weight in the memory

[![Build Status](https://travis-ci.org/s00d/zset.svg?branch=master)](https://travis-ci.org/s00d/zset)

[![npm version](https://badge.fury.io/js/zset-node.svg)](https://badge.fury.io/js/zset-node)

## methods

create: 

``` let zset = new ZSet({t1: {val: {val: 1}}}) ```

add new item :

``` zset.set('t2', {val: {val: 10}}) ```

multiple add new item:

``` zset.add({t3: {val: {val: 3}}}) ```

increment weight item:

``` zset.incr('t2', weight = 1) ```

search item: 

``` zset.search('val.val', callback)' ```

callback example - (count) => count > 0

val.val - path

first item: 

``` zset.first() ```

last item: 

``` zset.first(true) ```

first and pop item: 

``` zset.firstPop() ```

del item: 

``` zset.del('t2') ```

get by key item: 

``` zset.byKey('t1') ```

restart weight

``` zset.restart(default = 1) ```

clear zset

``` zset.clear() ```

### Links

only object values

setLink

``` zset.setLink('t10.val', 10) ```

getLink

``` zset.setLink(10) ```

delLink

``` zset.delLink(10) ```

Install: 

``` npm i zset-node --save ```

Example use: 

```

let ZSet = require('zset-node');

let zset = new ZSet({t1: {val: {val: 1}}});

zset.set('t2', {val: {val: 10}})

zset.incr('t2')

console.log(zset.first());

console.log(zset.search('val.val', (count) => count > 5));

zset.incr('t1', 5)

zset.incr('t2', -1)

console.log(zset.first());

zset.restart()

zset.byKey('t1')

zset.clear()

```

benchmark:

```

       1,777,719 op/s » full

      10,857,283 op/s » set

     184,439,075 op/s » incr

      16,156,104 op/s » set2

      15,822,752 op/s » get

       1,351,739 op/s » search

      14,427,746 op/s » first

      13,898,607 op/s » last

     217,104,550 op/s » byKey

       5,367,071 op/s » first and pop

         592,784 op/s » set_link

  Suites:  1

  Benches: 6

  Elapsed: 5,085.41 ms

```