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matthewp

2 indexed repositories · View on GitHub

haunted
React's Hooks API implemented for web components 👻

TypeScript · 2719 stars
robot
🤖 A functional, immutable Finite State Machine library

JavaScript · 2199 stars

Beginner friendly Everything

Open All

Docs: clarify actions and reducers Open

Difficulty 3/5 1-2 days Newbie friendliness 65/100

matthewp/robot#266 · 7 comments · Opened Jul 30, 2026
Version 1.3.0 was never released Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

matthewp/robot#263 · 1 comment · Opened Mar 31, 2026
TypeScript gives error when state has multiple transitions with different events Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

matthewp/robot#262 · 1 comment · Opened Feb 27, 2026
Question about reducers Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

matthewp/robot#244 · 3 comments · Opened Jun 28, 2025
`onChange` callback called twice for same state when using `immediate` transitions Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

matthewp/robot#243 · 3 reactions · Opened Jun 25, 2025
Extraneous names for current state type Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 35/100

matthewp/robot#241 · 1 comment · Opened Mar 21, 2025
Reattaching an element does not re-run the effects Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

matthewp/haunted#492 · Opened Feb 21, 2025
ESM only Open

pending response

Difficulty 4/5 3-5 days Newbie friendliness 35/100

matthewp/robot#237 · 4 comments · Opened Jan 18, 2025
Changing custom-element attribute with setAttribute() does not rerender it Open

matthewp/haunted#476 · 1 comment · 1 assignee · Opened Sep 7, 2024
`immediate` with no transition? Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 20/100

matthewp/robot#210 · 6 comments · 5 reactions · Opened Jan 23, 2024
Virtual Components Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

matthewp/haunted#475 · 11 comments · Opened Nov 27, 2023
Method to check if transition is traversable Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

matthewp/robot#200 · 1 comment · 2 reactions · Opened Mar 18, 2023
Haunted not clearing innerHTML before first render Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

matthewp/haunted#444 · 2 comments · Opened Oct 13, 2022
Notify RootPart of disconnect when disconnecting component Open

matthewp/haunted#407 · 1 assignee · Opened Jun 8, 2022
Demos failing on SyntaxError in haunted.js from unpkg Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

matthewp/haunted#404 · 6 comments · 1 reaction · Opened Jun 2, 2022
Consider replacing State and Hook classes with ReactiveController[Host] Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

matthewp/haunted#351 · Opened Jan 13, 2022
question on potential Redux hooks Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

matthewp/haunted#342 · Opened Dec 22, 2021
LitHauntedElement: No re-render observed when incoming prop changed Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

matthewp/haunted#341 · 3 comments · Opened Dec 22, 2021
How to annotate return type of custom Haunted hook? Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

matthewp/haunted#335 · Opened Nov 18, 2021
Question: Attribute/property intellisense support for haunted functional components when editing html template literals? Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

matthewp/haunted#305 · 1 reaction · Opened Sep 17, 2021
polymer cli + haunted => classProperties Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

matthewp/haunted#277 · 2 comments · Opened Jul 19, 2021
Sync rendering Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

matthewp/haunted#261 · Opened Jul 13, 2021
Docs: API-wide nav Open

documentation website

Difficulty 3/5 1-2 days Newbie friendliness 45/100

matthewp/robot#164 · 3 comments · 3 reactions · Opened Jun 20, 2021
useContext el.update twice? Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

matthewp/haunted#246 · Opened May 12, 2021
question on suspense Open

question

Difficulty 5/5 Over a week Newbie friendliness 15/100

matthewp/haunted#245 · 2 comments · Opened May 12, 2021
Jazz up the build system Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

matthewp/haunted#240 · 6 comments · 2 reactions · Opened May 4, 2021
button does not work in a vaading-grid Open

Difficulty 3/5 1-2 days Newbie friendliness 20/100

matthewp/haunted#233 · Opened Apr 22, 2021
Using Higher Order Components with Haunted Open

question

Difficulty 5/5 Over a week Newbie friendliness 15/100

matthewp/haunted#225 · 5 comments · 1 reaction · Opened Feb 6, 2021
export `StateUpdater` and other utility types Open

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

matthewp/haunted#222 · 2 reactions · Opened Jan 17, 2021
First event with nested machine as a first state is missed Open

matthewp/robot#138 · 1 comment · 5 reactions · 1 assignee · Opened Jan 11, 2021
Can't useRef to get reference to DOM element Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

matthewp/haunted#220 · 5 reactions · Opened Dec 30, 2020
Share context between machines? Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

matthewp/robot#135 · 3 comments · 7 reactions · Opened Dec 24, 2020
Hot module replacement Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

matthewp/haunted#217 · 4 comments · 1 reaction · Opened Nov 24, 2020
js extension not added to lib/*.js Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 38/100

matthewp/haunted#209 · 1 comment · Opened Sep 23, 2020
how to pass a property and an observable attribute. Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

matthewp/haunted#205 · Opened Aug 26, 2020
robot-hooks: Infinite loop if machine is created anew each render Open

hooks

Difficulty 3/5 1-2 days Newbie friendliness 45/100

matthewp/robot#196 · 1 comment · 1 reaction · Opened Aug 11, 2020
[question] Why proxy instead of property list? Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

matthewp/haunted#198 · Opened Jul 30, 2020
deploy haunted js library in firebase hosting with folder node_modules got an error Open

Difficulty 4/5 3-5 days Newbie friendliness 20/100

matthewp/haunted#188 · Opened May 26, 2020
how to refer to nested components? Open

question

Difficulty 3/5 1-2 days Newbie friendliness 35/100

matthewp/haunted#181 · 2 comments · Opened Apr 12, 2020
haunted.js:492 Uncaught (in promise) TypeError: Cannot read property 'parentNode' of undefined Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 25/100

matthewp/haunted#180 · Opened Mar 23, 2020
Immutable State Machines Open

discussion enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

matthewp/robot#106 · 5 comments · 3 reactions · Opened Mar 21, 2020
CustomEvents and TypeScript Open

typings

Difficulty 4/5 3-5 days Newbie friendliness 28/100

matthewp/haunted#177 · 8 comments · 5 reactions · Opened Mar 19, 2020
Problem with ESM libraries using only React default export Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

matthewp/haunted#174 · 1 comment · 1 reaction · Opened Mar 2, 2020
Wrong context initial value when using a wrapper component with a slot Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

matthewp/haunted#172 · 3 reactions · Opened Feb 26, 2020
es5 transpiling for component library Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

matthewp/haunted#170 · 5 comments · 3 reactions · Opened Jan 22, 2020
IE11 support is broken (even with proxy polyfill) Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

matthewp/haunted#168 · 8 comments · Opened Jan 13, 2020
useEffect is synchronous? Open

bug

Difficulty 5/5 Over a week Newbie friendliness 25/100

matthewp/haunted#161 · 5 comments · Opened Dec 12, 2019
CommonJS entry Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

matthewp/haunted#158 · 3 comments · Opened Dec 4, 2019
Some race-condition when used with lit-element Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

matthewp/haunted#155 · 3 comments · Opened Nov 21, 2019
Bug when unmounted and recycling the web-component Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

matthewp/haunted#149 · 5 comments · Opened Nov 13, 2019

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