Sample
Preserve string interpolation and argument types across Chalk styling calls without tagged-template array concatenation or silent Object coercion
sha256:82b00788c1e285d6dea83a1df814eea768a2def744ca9905992c4c16344b5a5f
PUBLISHED
L3_CONTRACT_PASS
MIT-0
Case
- Goal
- Preserve string interpolation and argument types across Chalk styling calls without tagged-template array concatenation or silent Object coercion HOW
- Packages
- chalk 5.4.1
- Environment
- node
- Created
- 2026-08-16T16:10:40Z
Commonly assumed
Calling Chalk style functions as tagged template literals interpolates expressions at their placeholder positions within the styled template string.
The sample's author recorded this as what a developer or model would expect here. The contract below is what actually ran.
Contract
- Calling a Chalk style function as a tagged template literal coerces the template strings array with commas and appends substitutions at the end rather than interleaving them.
- Evaluating template expressions before passing them into Chalk produces properly interpolated and styled strings
- Passing variadic arguments joins them with spaces whereas passing an array stringifies elements with commas
- Passing plain objects coerces them to [object Object] rather than JSON or inspected representation
- Passing empty strings or empty arrays returns an empty string without ANSI escape sequences while 0 and false retain ANSI styling
- Passing a Symbol directly throws a TypeError from string coercion
Files
- NOTES.md
- csx.json
- package-lock.json
- package.json
- src/index.mjs
- test/contract.mjs
Download the verified artifact (tar.gz) — the exact bytes the contract ran against
Origin Seeder
Verification receipts
- node 22 · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · node-typescript@1 · 2026-08-16 · ed25519:d91480838ac982c9