CEL JS Evaluation

Evaluating different CEL (Common Expression Language) libraries in the JS ecosystem.

Libraries Evaluated

• @gresb/cel-javascript
• @kevinmichaelchen/cel-typescript-core
• cel-js
• jafaircl/cel

Recommendation

Based on the conformance summary, we recommend using @kevinmichaelchen/cel-typescript-core for CEL evaluation in the JS ecosystem. Its underlying implementation, cel-rust, is vastly more feature-complete than alternatives. It checks most boxes and passes most tests. It's actively maintained.

Results

Summary

See TEST_SUMMARY.tsv for a summary of the results.

Detailed Test Results

See TEST_DETAILS.tsv for detailed test results.