✨ The fundamental numerical library for JavaScript and TypeScript. ✨ ⭐️ Star to support our work!
C-Rank Grade: A (Welcoming) - 69/100
External PR Merge Rate: 72%
Response Time: -
First Timer Success: 64%
stdlib-js/stdlib has a recorded first-timer success rate of 63.9%. Repositories ranked A typically provide actionable feedback during code reviews and actively nurture new community contributors.
Maintainers in stdlib-js/stdlib respond to incoming external pull requests in approximately 0.0 hours on average. Keeping PRs focused on single tasks and ensuring tests pass helps maintainers review faster.
The C-Rank™ system evaluates GitHub projects on a 0–100 scale using real data: PR merge rates, review turnaround time, active maintainer presence, and first-time contributor success. A score of 69.3 places stdlib-js/stdlib in the A tier.
The external contributor pull request merge rate for stdlib-js/stdlib is 72.2%, based on public PR activity from non-core contributors.
stdlib-js/stdlib currently has 21 active issue(s) tagged with beginner-friendly labels like "good first issue", "beginner", or "up-for-grabs".
✨ The fundamental numerical library for JavaScript and TypeScript. ✨ ⭐️ Star to support our work!
Established JavaScript ecosystem in stdlib-js/stdlib. Maintains structured code review standards for external contributors.
Average Response Latency
Tracks hours until a maintainer leaves a review, comment, or PR response.
External Acceptance Rate
Percentage of community pull requests successfully merged into main.
First PR Conversion
Rate at which developers submitting their first repository PR succeed.
Show contributors that your repository actively reviews and merges external pull requests.
[](https://getmerged.abhishekco.de/stdlib-js/stdlib?utm_source=github&utm_medium=badge)
Historical health & responsiveness evolution
External PR acceptance
First PR success rate
50% receive response in
90% receive response in
Maintainer review activity heatmap & prime window prediction
Calculating local time...
Calculating local time...
Detected: UTC
Maintainers are most responsive around 06:00 UTC (06:00 UTC in your timezone). Recommended submission window is Wednesday - Friday from 21:00 to 01:00 UTC (21:00 - 01:00 UTC local).
Maintainer Strategy: Maintainer Sweet Spot: PRs under 150 lines merge in ~16 hours (90% approval). Large PRs (>500 lines) take ~115 hours (33% approval). Keep your diff compact for rapid review.
JavaScript Linting Failures Linting failures were detected in the automated JavaScript lint workflow run. Workflow Details Run: https://github.com/stdlib-js/stdlib/actions/runs/38007375027 Type: JavaScript Linting Date: 2026-10-10 00:20:23 UTC Error Details make[1]: Entering directory '/home/runner/work/stdlib/stdlib' Linting file: lib/node_modules/@stdlib/ndarray/base/count-falsy/lib/10d.js Linting file: lib/node_modules/@stdlib/ndarray/base/unary-reduce-strided1d-by/lib/2d.js Linting file: lib/node_modules/@stdlib/math/base/special/kernel-betaincinv/lib/polyval_co12.js Linting file: lib/node_modules/@stdlib/blas/ext/base/ctriu2tril/lib/main.js Linting file: lib/node_modules/@stdlib/ndarray/base/assert/is-boolean-index-data-type/lib/main.js Linting file: lib/node_modules/@stdlib/lapack/base/shared/lib/main.js Linting file: lib/node_modules/@stdlib/stats/base/dists/anglit/skewness/lib/index.js Linting file: lib/node_modules/@stdlib/string/right-pad/lib/index.js Linting file:
C Linting Failures Linting failures were detected in the automated lint workflow run. Workflow Details Run: https://github.com/stdlib-js/stdlib/actions/runs/37862817489 Type: C Linting Date: 2026-10-09 00:26:11 UTC Error Details lib/node_modules/@stdlib/number/int32/base/mul/test/fixtures/c/runner.c:143:36: style: Parameter 'x' can be declared as pointer to const [constParameterPointer] void i32_to_f64( double *out, int *x, unsigned int len ) { ^ lib/node_modules/@stdlib/number/int32/base/mul/test/fixtures/c/runner.c:158:36: style: Parameter 'x' can be declared as pointer to const [constParameterPointer] void f64_to_i32( int *out, double *x, unsigned int len ) { ^ lib/node_modules/@stdlib/number/int32/base/mul/test/fixtures/c/runner.c:262:21: style: Parameter 'a' can be declared as pointer to const [constParameterPointer] void generate( int *a, int *b, const unsigned int len, const char *name ) {
JavaScript Linting Failures Linting failures were detected in the automated JavaScript lint workflow run. Workflow Details Run: https://github.com/stdlib-js/stdlib/actions/runs/37862817489 Type: JavaScript Linting Date: 2026-10-09 00:21:12 UTC Error Details make[1]: Entering directory '/home/runner/work/stdlib/stdlib' Linting file: lib/node_modules/@stdlib/strided/base/mskunary-dtype-signatures/examples/index.js Linting file: lib/node_modules/@stdlib/math/base/special/hacoversin/examples/index.js hacoversin(4.9631) = 0.9844 hacoversin(6.0915) = 0.5953 hacoversin(2.3838) = 0.1563 hacoversin(3.5994) = 0.7210 hacoversin(3.9334) = 0.8558 hacoversin(4.7448) = 0.9997 hacoversin(5.1497) = 0.9529 hacoversin(1.6682) = 0.0024 hacoversin(0.9702) = 0.0875 hacoversin(2.0651) = 0.0598 hacoversin(4.9790) = 0.9823 hacoversin(0.2761) = 0.3637 hacoversin(2.2398) = 0.1078 hacoversin(4.6990) = 1.0000 hacoversin(3.3736) = 0.6150 hacoversin(3.1808) = 0.5196 hacoversin(2.8966) = 0.3787 hacoversin(5.3726)
JavaScript Linting Failures Linting failures were detected in the automated JavaScript lint workflow run. Workflow Details Run: https://github.com/stdlib-js/stdlib/actions/runs/37705703501 Type: JavaScript Linting Date: 2026-10-08 00:15:22 UTC Error Details make[1]: Entering directory '/home/runner/work/stdlib/stdlib' Linting file: lib/node_modules/@stdlib/repl/server/lib/defaults.js /home/runner/work/stdlib/stdlib/lib/node_modules/@stdlib/repl/server/lib/defaults.js 47:15 error The 'repl.REPL_MODE_SLOPPY' is still an experimental feature and is not supported until Node.js 4.0.0. The configured version range is '>=0.12.18' n/no-unsupported-features/node-builtins ✖ 1 problem (1 error, 0 warnings) Linting failed. Linting file: lib/node_modules/@stdlib/constants/float16/sqrt-two-pi/lib/index.js Linting file: lib/node_modules/@stdlib/blas/ext/base/swxdy/lib/ndarray.native.js Linting file: lib/node_modules/@stdlib/assert/is-iterator-like/lib/index.js Linting file: lib/node_mo
JavaScript Linting Failures Linting failures were detected in the automated JavaScript lint workflow run. Workflow Details Run: https://github.com/stdlib-js/stdlib/actions/runs/37549938275 Type: JavaScript Linting Date: 2026-10-07 00:18:24 UTC Error Details make[1]: Entering directory '/home/runner/work/stdlib/stdlib' Linting file: lib/node_modules/@stdlib/blas/ext/base/gsum/lib/index.js Linting file: lib/node_modules/@stdlib/strided/napi/zmap/lib/main.js Linting file: lib/node_modules/@stdlib/random/streams/triangular/lib/validate.js Linting file: lib/node_modules/@stdlib/ndarray/base/unary-by/lib/6d_accessors.js Linting file: lib/node_modules/@stdlib/math/base/special/trunc2f/lib/main.js Linting file: lib/node_modules/@stdlib/stats/base/ndarray/midrange-by/lib/main.js Linting file: lib/node_modules/@stdlib/ndarray/concat1d/lib/resolve_dtypes.js Linting file: lib/node_modules/@stdlib/number/float64/base/add/lib/main.js Linting file: lib/node_modules/@stdlib/assert/is-boolea
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When evaluating whether to contribute to stdlib-js/stdlib, response velocity and maintainer engagement are crucial. GetMerged continuously tracks pull request trajectories, first-comment latency, and code review rounds to help developers avoid submitting pull requests to backlogged repositories.
Currently, maintainers of stdlib-js/stdlib acknowledge new external contributions in approximately -. Out of all submitted pull requests from non-core authors in the last 180-day window, 72.2% were successfully merged into the primary branch.
stdlib-js/stdlib has a recorded first-timer success rate of 63.9%. Repositories ranked Welcoming typically provide actionable feedback during code reviews and actively nurture new community contributors.
The initial maintainer response time averages ~-. Keeping PRs scoped to single concerns and ensuring CI checks succeed will optimize review turnaround.
The C-Rank™ index scores repositories on a 0 to 100 scale using an objective formula: external PR merge rates, initial response speed, active maintainer count, and first-time contributor retention. A score of 69.3 places stdlib-js/stdlib in the Welcoming tier.
The external pull request merge rate is 72.2%. GetMerged isolates non-core community contributions so external developers get an accurate benchmark of PR acceptance probability.
Yes, stdlib-js/stdlib currently has 21 active issue(s) tagged with beginner-friendly labels. You can inspect these directly from the repository issues tab.
All metrics displayed for stdlib-js/stdlib are automatically retrieved via the public GitHub API and recalculated daily. Insider pull requests submitted by repository owners or organization members are excluded from merge rate calculations to preserve objective external contributor statistics.