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lit

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lit
Lit is a simple library for building fast, lightweight web components.

TypeScript · 21828 stars
lit.dev
The Lit website

TypeScript · 142 stars
video-series-samples

TypeScript · 6 stars

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[labs/router] getTailGroup selects the wrong tail: unanchored digit regex and lexicographic group ordering Open

Difficulty 2/5 1-3 hours Newbie friendliness 86/100

lit/lit#5381 · Opened Sep 7, 2026
The example for `when` doesn't show that it takes the condition value as a parameter Open

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

lit/lit.dev#1480 · Opened Jun 19, 2026
[labs/router] README documentation for enter() callback doesn't match implementation Open

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

lit/lit#5328 · 1 reaction · Opened May 8, 2026
[docs] Document the @lit-labs/ssr-dom-shim package on docs/ssr/dom-emulation/ Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

lit/lit.dev#1469 · Opened May 7, 2026
Amend @types/node constraint Open

Difficulty 2/5 1-3 hours Newbie friendliness 70/100

lit/lit#5323 · Opened Apr 27, 2026
wrapJsxDev stringifies render thunks instead of executing them - raw function source leaks into page HTML in dev mode Open

Difficulty 1/5 Under an hour Newbie friendliness 78/100

lit/lit#5321 · 1 comment · Opened Apr 26, 2026
[labs/virtualizer] Default keyFunction breaks rendering when items contain non-unique scalar values Open

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

lit/lit#5296 · Opened Apr 11, 2026
[labs/virtualizer] ScrollerController scrollTop/scrollLeft getters return wrong value when element is at scroll position 0 Open

Difficulty 1/5 Under an hour Newbie friendliness 70/100

lit/lit#5293 · Opened Apr 10, 2026
[labs/virtualizer] Flow layout: scrollToIndex scrolls to margin edge instead of border edge Open

Difficulty 2/5 1-3 hours Newbie friendliness 74/100

lit/lit#5286 · 1 comment · Opened Apr 9, 2026
[labs/virtualizer] Flow layout: off-by-one errors in margin collapsing with non-uniform margins Open

Difficulty 2/5 1-3 hours Newbie friendliness 82/100

lit/lit#5285 · Opened Apr 9, 2026
Async Tasks docs don't explain what happens if state callbacks are omitted Open

Difficulty 1/5 1-3 hours Newbie friendliness 72/100

lit/lit.dev#1463 · 1 comment · Opened Apr 3, 2026
ResizeController cannot be imported when using pnpm and setting hoist = false in .npmrc Open

Difficulty 2/5 1-3 hours Newbie friendliness 75/100

lit/lit#5214 · 4 comments · Opened Jan 29, 2026
Bug in `lit-element-hydrate-support.ts`, mutation of NamedNodeMap Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

lit/lit#5114 · 3 reactions · Opened Oct 9, 2025
Passing undefined to ref() creates runtime error Open

Difficulty 2/5 1-3 hours Newbie friendliness 62/100

lit/lit#4953 · 1 comment · Opened Mar 25, 2025
[react] Add React 19 support to reduce migration burden Open

Difficulty 1/5 Under an hour Newbie friendliness 68/100

lit/lit#4857 · 2 comments · 12 reactions · Opened Dec 7, 2024
[docs] Update decorator with babel section Open

Difficulty 1/5 Under an hour Newbie friendliness 65/100

lit/lit.dev#1334 · Opened May 17, 2024
What do the different node colors in the Reactive Update lifecycle diagrams mean? Open

Difficulty 2/5 1-3 hours Newbie friendliness 62/100

lit/lit.dev#1133 · Opened May 25, 2023
Add `query` examples with types Open

Difficulty 2/5 1-3 hours Newbie friendliness 62/100

lit/lit.dev#541 · Opened Oct 1, 2021

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