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eemeli

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yaml
YAML parser and serialiser for JavaScript

TypeScript · 1691 stars

Beginner friendly Everything

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Empty line after empty tagged value at end of map in sequence is mis-assigned Open

bug

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

eemeli/yaml#717 · 2 comments · Opened Sep 12, 2026
Add setting to configure line ending sequence. Open

enhancement

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

eemeli/yaml#706 · 1 comment · Opened Jul 23, 2026
No error for C0-control characters Open

bug

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

eemeli/yaml#703 · 1 comment · Opened Jul 4, 2026
stringify() of multiline string with leading space on first line does not round-trip through parse() Open

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

eemeli/yaml#692 · 1 comment · 1 reaction · Opened Jun 17, 2026
`toString()` incorrectly converts comment to string Open

bug

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

eemeli/yaml#687 · 2 comments · Opened Jun 10, 2026
EOL for `yaml` v1 Open

v1

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

eemeli/yaml#680 · 2 reactions · Opened May 2, 2026
Option in `ToStringOptions` to add a trailing comma to FlowSequences and FlowMaps Open

enhancement

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

eemeli/yaml#669 · 1 comment · Opened Feb 26, 2026
Use Temporal for time stamps Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 48/100

eemeli/yaml#668 · 2 comments · Opened Feb 20, 2026
Add JSON Schema support Open

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

eemeli/yaml#662 · 4 comments · 2 reactions · Opened Feb 13, 2026
Emit warning on integer & floating-point overflow Open

enhancement

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

eemeli/yaml#661 · Opened Feb 13, 2026
Support `JSON.rawJSON()` values when serialising Open

enhancement

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

eemeli/yaml#659 · Opened Feb 13, 2026
Support `context.source` in the `parse()` reviver Open

enhancement

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

eemeli/yaml#658 · 1 reaction · Opened Feb 13, 2026
Can't round-trip out-of-range floating point Open

bug

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

eemeli/yaml#657 · 1 comment · Opened Feb 12, 2026
Empty line added for end hierarchy key after #590 fix Open

bug

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

eemeli/yaml#639 · 4 comments · Opened Sep 17, 2025
docs/defaults request: safety for yaml 1.1 consumers Open

enhancement

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

eemeli/yaml#622 · Opened May 20, 2025
Comments trailing YAML keys are moved Open

bug

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

eemeli/yaml#602 · 2 comments · 2 reactions · Opened Feb 4, 2025
Breaking changes for `yaml` v3 Open

help wanted need more info

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

eemeli/yaml#601 · 6 comments · 21 reactions · Opened Jan 30, 2025
Newline-separated comments should stay separate at document start Open

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

eemeli/yaml#600 · 6 comments · 2 reactions · Opened Jan 8, 2025
Comment handling is off by one Open

bug

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

eemeli/yaml#575 · 4 comments · 1 reaction · Opened Sep 9, 2024
Multi line values formatting is not preserved when parsing and stringifying documents Open

bug

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

eemeli/yaml#572 · 1 comment · 3 reactions · Opened Sep 2, 2024
Block Scalar indentation shenanigans Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 32/100

eemeli/yaml#553 · 4 comments · Opened Jun 7, 2024
FR: Change YAMLMap to support non record types Open

enhancement

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

eemeli/yaml#535 · 1 comment · Opened Apr 9, 2024
Resolve aliases when using `getIn` Open

enhancement

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

eemeli/yaml#386 · 5 comments · 1 reaction · Opened May 2, 2022
CST.setScalarValue() does not preserve non-semantic indentation for block scalars Open

bug

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

eemeli/yaml#349 · 3 comments · Opened Jan 16, 2022
Proxy Interface for Document Open

enhancement

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

eemeli/yaml#294 · 7 comments · 3 reactions · Opened Jul 10, 2021
Array-indent not maintained between parseDocument/toString Open

enhancement help wanted

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

eemeli/yaml#283 · 2 comments · 1 reaction · Opened Jun 14, 2021

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