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Gathering detailed insights and metrics for javascript-state-machine

javascript-state-machine - 3.1.0 | npmpackage.info

javascript-state-machine

A javascript finite state machine library

3.1.0

8,735

MIT

JavaScript

1.9

Installations

npm install javascript-state-machine

Developer Guide

BETA

Typescript

No

Module System

CommonJS

Node Version

8.9.4

NPM Version

5.6.0 Pull Requests

Open

8

Total

55

Closed

31

Merged

16

Issues

Open

66

Total

156

Closed

90

Releases

Unable to fetch releases

Languages

JavaScript

HTML

JavaScript (99.56%)

HTML (0.44%)

Developer

jakesgordon

Download Statistics

Total Downloads

Last Day

Last Week

Last Month

Last Year

GitHub Statistics

MIT License

8,735 Stars

165 Commits

968 Forks

260 Watchers

3 Branches

11 Contributors

Updated on Jul 10, 2025

Maintainers

View All 11 Contributors

Package Meta Information

Latest Version

3.1.0

Package Id

javascript-state-machine@3.1.0

Size

17.02 kB

NPM Version

5.6.0

Node Version

8.9.4

Published on

Jul 12, 2018

Total Downloads

Cumulative downloads

Total Downloads

NaN

Last Day

NaN

Compared to previous day

Last Week

NaN

Compared to previous week

Last Month

NaN

Compared to previous month

Last Year

NaN

Compared to previous year

Weekly Downloads

Monthly Downloads

Yearly Downloads

Dev Dependencies

ava fs-sync glob nyc pascal-case uglify-js webpack

Javascript State Machine

A library for finite state machines.

matter state machine

NOTE for existing users

VERSION 3.0 Is a significant rewrite from earlier versions. Existing 2.x users should be sure to read the Upgrade Guide.

Installation

In a browser:

1  <script src='state-machine.js'></script>

after downloading the source or the minified version

Using npm:

1  npm install --save-dev javascript-state-machine

In Node.js:

1  var StateMachine = require('javascript-state-machine');

Usage

A state machine can be constructed using:

1  var fsm = new StateMachine({
2    init: 'solid',
3    transitions: [
4      { name: 'melt',     from: 'solid',  to: 'liquid' },
5      { name: 'freeze',   from: 'liquid', to: 'solid'  },
6      { name: 'vaporize', from: 'liquid', to: 'gas'    },
7      { name: 'condense', from: 'gas',    to: 'liquid' }
8    ],
9    methods: {
10      onMelt:     function() { console.log('I melted')    },
11      onFreeze:   function() { console.log('I froze')     },
12      onVaporize: function() { console.log('I vaporized') },
13      onCondense: function() { console.log('I condensed') }
14    }
15  });

... which creates an object with a current state property:

fsm.state

... methods to transition to a different state:

fsm.melt()
fsm.freeze()
fsm.vaporize()
fsm.condense()

... observer methods called automatically during the lifecycle of a transition:

onMelt()
onFreeze()
onVaporize()
onCondense()

... along with the following helper methods:

fsm.is(s) - return true if state s is the current state
fsm.can(t) - return true if transition t can occur from the current state
fsm.cannot(t) - return true if transition t cannot occur from the current state
fsm.transitions() - return list of transitions that are allowed from the current state
fsm.allTransitions() - return list of all possible transitions
fsm.allStates() - return list of all possible states

Terminology

A state machine consists of a set of States

solid
liquid
gas

A state machine changes state by using Transitions

melt
freeze
vaporize
condense

A state machine can perform actions during a transition by observing Lifecycle Events

onBeforeMelt
onAfterMelt
onLeaveSolid
onEnterLiquid
...

A state machine can also have arbitrary Data and Methods.

Multiple instances of a state machine can be created using a State Machine Factory.

Documentation

Contributing

You can Contribute to this project with issues or pull requests.

Release Notes

See RELEASE NOTES file.

License

See MIT LICENSE file.

Contact

If you have any ideas, feedback, requests or bug reports, you can reach me at jake@codeincomplete.com, or via my website: Code inComplete

No vulnerabilities found.

10

Binary-Artifacts

Determines if the project has generated executable (binary) artifacts in the source repository.

10

License

Determines if the project has defined a license.

1

Code-Review

Determines if the project requires human code review before pull requests (aka merge requests) are merged.

0

Maintained

Determines if the project is "actively maintained".

0

CII-Best-Practices

Determines if the project has an OpenSSF (formerly CII) Best Practices Badge.

0

Security-Policy

Determines if the project has published a security policy.

0

Fuzzing

Determines if the project uses fuzzing.

0

Branch-Protection

Determines if the default and release branches are protected with GitHub's branch protection settings.

0

SAST

Determines if the project uses static code analysis.

0

Vulnerabilities

Determines if the project has open, known unfixed vulnerabilities.

Reason

82 existing vulnerabilities detected

Details

Warn: Project is vulnerable to: GHSA-v88g-cgmw-v5xw
Warn: Project is vulnerable to: GHSA-fwr7-v2mv-hh25
Warn: Project is vulnerable to: GHSA-67hx-6x53-jw92
Warn: Project is vulnerable to: GHSA-832h-xg76-4gv6
Warn: Project is vulnerable to: GHSA-v6h2-p8h4-qcjw
Warn: Project is vulnerable to: GHSA-cwfw-4gq5-mrqx
Warn: Project is vulnerable to: GHSA-g95f-p29q-9xw4
Warn: Project is vulnerable to: GHSA-grv7-fg5c-xmjg
Warn: Project is vulnerable to: GHSA-x9w5-v3q2-3rhw
Warn: Project is vulnerable to: GHSA-3xgq-45jj-v275
Warn: Project is vulnerable to: GHSA-9vvw-cc9w-f27h
Warn: Project is vulnerable to: GHSA-gxpj-cx7g-858c
Warn: Project is vulnerable to: GHSA-hr2v-3952-633q
Warn: Project is vulnerable to: GHSA-ff7x-qrg7-qggm
Warn: Project is vulnerable to: GHSA-vh7m-p724-62c2
Warn: Project is vulnerable to: GHSA-r9p9-mrjm-926w
Warn: Project is vulnerable to: GHSA-434g-2637-qmqr
Warn: Project is vulnerable to: GHSA-49q7-c7j4-3p7m
Warn: Project is vulnerable to: GHSA-977x-g7h5-7qgw
Warn: Project is vulnerable to: GHSA-f7q4-pwc6-w24p
Warn: Project is vulnerable to: GHSA-fc9h-whq2-v747
Warn: Project is vulnerable to: GHSA-vjh7-7g9h-fjfh
Warn: Project is vulnerable to: GHSA-qrmc-fj45-qfc2
Warn: Project is vulnerable to: GHSA-8r6j-v8pm-fqw3
Warn: Project is vulnerable to: MAL-2023-462
Warn: Project is vulnerable to: GHSA-xf7w-r453-m56c
Warn: Project is vulnerable to: GHSA-pfrx-2q88-qq97
Warn: Project is vulnerable to: GHSA-q42p-pg8m-cqh6
Warn: Project is vulnerable to: GHSA-w457-6q6x-cgp9
Warn: Project is vulnerable to: GHSA-62gr-4qp9-h98f
Warn: Project is vulnerable to: GHSA-f52g-6jhx-586p
Warn: Project is vulnerable to: GHSA-2cf5-4w76-r9qv
Warn: Project is vulnerable to: GHSA-3cqr-58rm-57f8
Warn: Project is vulnerable to: GHSA-g9r4-xpmj-mj65
Warn: Project is vulnerable to: GHSA-q2c6-c6pm-g3gh
Warn: Project is vulnerable to: GHSA-765h-qjxv-5f44
Warn: Project is vulnerable to: GHSA-f2jv-r9rf-7988
Warn: Project is vulnerable to: GHSA-44pw-h2cw-w3vq
Warn: Project is vulnerable to: GHSA-jp4x-w63m-7wgm
Warn: Project is vulnerable to: GHSA-c429-5p7v-vgjp
Warn: Project is vulnerable to: GHSA-43f8-2h32-f4cj
Warn: Project is vulnerable to: GHSA-qqgx-2p2h-9c37
Warn: Project is vulnerable to: GHSA-4hpf-3wq7-5rpr
Warn: Project is vulnerable to: GHSA-f522-ffg8-j8r6
Warn: Project is vulnerable to: GHSA-p9w8-2mpq-49h9
Warn: Project is vulnerable to: GHSA-896r-f27r-55mw
Warn: Project is vulnerable to: GHSA-9c47-m6qq-7p4h
Warn: Project is vulnerable to: GHSA-282f-qqgm-c34q
Warn: Project is vulnerable to: GHSA-76p3-8jx3-jpfq
Warn: Project is vulnerable to: GHSA-fvqr-27wr-82fm
Warn: Project is vulnerable to: GHSA-4xc9-xhrj-v574
Warn: Project is vulnerable to: GHSA-x5rq-j2xg-h7qm
Warn: Project is vulnerable to: GHSA-jf85-cpcp-j695
Warn: Project is vulnerable to: GHSA-p6mc-m468-83gw
Warn: Project is vulnerable to: GHSA-29mw-wpgm-hmr9
Warn: Project is vulnerable to: GHSA-35jh-r3h4-6jhm
Warn: Project is vulnerable to: GHSA-952p-6rrq-rcjv
Warn: Project is vulnerable to: GHSA-f8q6-p94x-37v3
Warn: Project is vulnerable to: GHSA-vh95-rmgr-6w4m
Warn: Project is vulnerable to: GHSA-xvch-5gv4-984h
Warn: Project is vulnerable to: GHSA-w9mr-4mfr-499f
Warn: Project is vulnerable to: GHSA-ff6r-5jwm-8292
Warn: Project is vulnerable to: GHSA-hj48-42vr-x3v9
Warn: Project is vulnerable to: GHSA-h7cp-r72f-jxh6
Warn: Project is vulnerable to: GHSA-v62p-rq8g-8h59
Warn: Project is vulnerable to: GHSA-gqgv-6jq5-jjj9
Warn: Project is vulnerable to: GHSA-hrpp-h998-j3pp
Warn: Project is vulnerable to: GHSA-6g33-f262-xjp4
Warn: Project is vulnerable to: GHSA-p8p7-x288-28g6
Warn: Project is vulnerable to: GHSA-c2qf-rxjj-qqgw
Warn: Project is vulnerable to: GHSA-2m39-62fm-q8r3
Warn: Project is vulnerable to: GHSA-mf6x-7mm4-x2g7
Warn: Project is vulnerable to: GHSA-j44m-qm6p-hp7m
Warn: Project is vulnerable to: GHSA-3jfq-g458-7qm9
Warn: Project is vulnerable to: GHSA-5955-9wpr-37jh
Warn: Project is vulnerable to: GHSA-f5x3-32g6-xq36
Warn: Project is vulnerable to: GHSA-g7q5-pjjr-gqvp
Warn: Project is vulnerable to: GHSA-72xf-g2v4-qvf3
Warn: Project is vulnerable to: GHSA-7p7h-4mm5-852v
Warn: Project is vulnerable to: GHSA-xc7v-wxcw-j472
Warn: Project is vulnerable to: GHSA-c4w7-xm78-47vh
Warn: Project is vulnerable to: GHSA-p9pc-299p-vxgp

Score

1.9

/10

Last Scanned on 2025-06-30

The Open Source Security Foundation is a cross-industry collaboration to improve the security of open source software (OSS). The Scorecard provides security health metrics for open source projects.

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