jashkenas/coffeescript

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Unfancy JavaScript

Stars: 16.6k
Forks: 2k
Open beginner issues: 0
Indexed issues: 75

Dominant language: CoffeeScript
License: MIT
Last GitHub push: Sep 19, 2023
Latest indexed: Sep 18, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: help wanted
PR merge metrics: No merged PRs in 30d

Beginner friendly Everything

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75 open issues indexed

Coffeescript unusable with Svelte 5 Open

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

jashkenas/coffeescript#5499 · 9 comments · 5 reactions · Opened Feb 26, 2026
Bug: Single line function literals as arguments. Open

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

jashkenas/coffeescript#5488 · 3 comments · 2 reactions · Opened May 9, 2025
In Operator - IndexOf Open

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

jashkenas/coffeescript#5481 · 1 comment · Opened Dec 18, 2024
Bug: using "not in" operator in switch works as "in" instead Open

Difficulty 3/5 1-2 days Newbie friendliness 55/100

jashkenas/coffeescript#5480 · 1 comment · Opened Dec 3, 2024
Allow `import file from "./file.json" with {type: "json"}` (i.e. import attributes) Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

jashkenas/coffeescript#5470 · 1 reaction · Opened Nov 1, 2024
Number with a dot before `e` in scientific notation returns two dots in JavaScript Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

jashkenas/coffeescript#5469 · 1 comment · Opened Sep 12, 2024
Feature request: Multiple imports Open

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

jashkenas/coffeescript#5467 · 1 comment · Opened Jul 27, 2024
Bug: Invalid indentation allowed after `do` Open

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

jashkenas/coffeescript#5458 · Opened Oct 4, 2023
CLI `npm` `scripts` and input `.coffee` file/s as last argument conflicting with `--watch` Open

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

jashkenas/coffeescript#5455 · 2 comments · Opened Sep 14, 2023
Need help understanding class member meanings Open

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

jashkenas/coffeescript#5453 · 1 comment · Opened Sep 10, 2023
Proposal: cake command should support ES6 modules Open

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

jashkenas/coffeescript#5451 · 2 comments · 4 reactions · Opened Aug 16, 2023
Proposal: Document Existential Operator Assignment Open

Difficulty 1/5 Under an hour Newbie friendliness 52/100

jashkenas/coffeescript#5446 · 4 reactions · Opened Apr 15, 2023
Proposal: Introduce `let` statement. Open

Difficulty 5/5 Over a week Newbie friendliness 28/100

jashkenas/coffeescript#5445 · 7 comments · 8 reactions · Opened Mar 11, 2023
Bug: Excessive variable and shallow copy for leading or middle rest parameter Open

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

jashkenas/coffeescript#5444 · Opened Feb 4, 2023
Bug: Re-ordered nested non-end BindingRestElement doesn't get transpiled Open

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

jashkenas/coffeescript#5438 · 1 comment · Opened Dec 2, 2022
Bug: Chained comparison doesn't work with `in` binary operator Open

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

jashkenas/coffeescript#5434 · 1 comment · Opened Nov 6, 2022
Bug: Excess variable introduced in destructured `for ... from` loop Open

Difficulty 3/5 1-2 days Newbie friendliness 50/100

jashkenas/coffeescript#5433 · Opened Nov 3, 2022
Bug: Poor error message for invalid use of `then` keyword Open

bug

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

jashkenas/coffeescript#5432 · 2 comments · Opened Oct 27, 2022
Bug: Heregex escaped space before comment includes comment in transpiled regex Open

bug help wanted

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

jashkenas/coffeescript#5428 · Opened Oct 13, 2022
Bug: Missing source map for variable inside optional?.chaining operator Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

jashkenas/coffeescript#5424 · 1 reaction · Opened Aug 24, 2022
CoffeeScript compiler removes explicit parentheses making casts difficult in JSDoc Open

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

jashkenas/coffeescript#5418 · 4 reactions · Opened May 5, 2022
Comment moves inside of object Open

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

jashkenas/coffeescript#5417 · 1 comment · Opened Apr 28, 2022
Comment gets lost inside a function when using an existential operator Open

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

jashkenas/coffeescript#5415 · 1 comment · Opened Apr 25, 2022
`catch` block introduces extra var Open

Difficulty 3/5 1-2 days Newbie friendliness 42/100

jashkenas/coffeescript#5414 · 2 comments · Opened Apr 22, 2022
feat: CoffeeScript ESM loader Open

enhancement

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

jashkenas/coffeescript#5401 · 1 comment · 2 reactions · Opened Feb 22, 2022
Revisiting getters and setters Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

jashkenas/coffeescript#5394 · 26 comments · 4 reactions · Opened Jan 23, 2022
Grammar: Support `export * as namespace from` Open

enhancement

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

jashkenas/coffeescript#5393 · 1 comment · Opened Jan 19, 2022
Bug: Block comments push last comment into import statements Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

jashkenas/coffeescript#5386 · Opened Nov 17, 2021
Proposal: Lazy comprehensions Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

jashkenas/coffeescript#5379 · 8 comments · Opened Oct 1, 2021
Enhancement: Output let and const for variable declarations, without breaking changes Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 30/100

jashkenas/coffeescript#5377 · 12 comments · 6 reactions · Opened Sep 20, 2021
Request: Support Svelte JS labels Open

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

jashkenas/coffeescript#5367 · 18 comments · Opened Aug 14, 2021
Bug: Block comments should be placed above variable assignment, not declaration (Fix JSDoc etc) Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 38/100

jashkenas/coffeescript#5366 · 9 comments · 1 reaction · Opened Aug 8, 2021
return doesn't work in for loop comprehensions Open

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

jashkenas/coffeescript#5363 · 4 comments · Opened Jul 21, 2021
Bug: coffee command doesn't work with "type": "module" in package.json Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 38/100

jashkenas/coffeescript#5362 · 3 comments · 1 reaction · Opened Jul 20, 2021
Compiler configuration in a CSON options file Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

jashkenas/coffeescript#5359 · Opened Jul 14, 2021
Bug: Error#prepareStackTrace override causes console.trace to print '[object Object]' to the console. Open

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

jashkenas/coffeescript#5346 · Opened Feb 14, 2021
Bug: comment after else moved within JSX body Open

bug

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

jashkenas/coffeescript#5342 · Opened Jan 11, 2021
Bug: Loop control statements are allowed where they are invalid Open

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

jashkenas/coffeescript#5333 · Opened Oct 10, 2020
"multiple parameters named <value>" when destructuring params in args with duplicate default values Open

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

jashkenas/coffeescript#5332 · 2 comments · Opened Aug 17, 2020
Bug: Implicit object literals in array split improperly Open

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

jashkenas/coffeescript#5330 · Opened Jul 29, 2020
Proposal: pre-compile "obj{ a, b }" to "(({a,b})->{a,b})(obj)" to create a copy of "obj" with only properties "a" and "b" Open

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

jashkenas/coffeescript#5326 · 9 comments · Opened Jun 26, 2020
Bug: comment in array literal is moved into multi-line string Open

bug

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

jashkenas/coffeescript#5325 · Opened Jun 15, 2020
Discussion: Supporting plugins Open

enhancement

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

jashkenas/coffeescript#5320 · 4 comments · Opened May 10, 2020
Proposal: Optional (pre-last) function arguments Open

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

jashkenas/coffeescript#5318 · 4 comments · Opened May 10, 2020
Discussion: TypeScript Output Open

enhancement help wanted

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

jashkenas/coffeescript#5307 · 88 comments · 46 reactions · Opened Feb 29, 2020
Better debugging Open

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

jashkenas/coffeescript#5303 · 3 comments · 4 reactions · Opened Feb 13, 2020
Bug: multiline object literal requires braces in post-loops Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

jashkenas/coffeescript#5299 · 1 comment · Opened Feb 7, 2020
[BUG] exp in class definition Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

jashkenas/coffeescript#5289 · 1 reaction · Opened Jan 20, 2020
Bug: Chaining: Multi-line method/property chaining inconsistency with single-line object literals Open

bug

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

jashkenas/coffeescript#5240 · 1 comment · Opened Oct 19, 2019
Discussion: optional catch binding Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

jashkenas/coffeescript#5238 · 2 comments · 1 reaction · Opened Oct 13, 2019

jashkenas/coffeescript

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