Evaluate a script function on a page with PhantomJS
JavaScript expression parsing and evaluation.
Statsig helps you move faster with feature gates (feature flags), and/or dynamic configs. It also allows you to run A/B/n tests to validate your new features and understand their impact on your KPIs. If you're new to Statsig, check out our product and cre
Shape Expressions triple expression evaluator - simple regexp returning 1 error.
Add context awareness to your apps and frameworks by safely evaluating user-defined conditional expressions. Useful for evaluating expressions in config files, prompts, key bindings, completions, templates, and many other user cases.
pino logging koa middleware
A JSON schema validator that will run on Cloudflare workers. Supports drafts 4, 7, 2019-09, and 2020-12.
TypeScript definitions for static-eval
Vega expression parser and code generator.
un_eval converts an Object to its source
Mathematical expression evaluator fork with exports map, prototype pollution and code injection security fixes
Evaluable string representations
Convenience wrapper for Redis EVAL/EVALSHA
Secure expression evaluator - Drop-in replacement for expr-eval without CVE-2025-12735 vulnerability
Evaluates javascript code blocks from markdown files.
Protected eval plugin for form.io
TypeScript execution environment and REPL for node.js, with source map support
Statsig helps you move faster with feature gates (feature flags), and/or dynamic configs. It also allows you to run A/B/n tests to validate your new features and understand their impact on your KPIs. If you're new to Statsig, check out our product and cre
Statoscope extension to store custom reports in stats
Statsig helps you move faster with feature gates (feature flags), and/or dynamic configs. It also allows you to run A/B/n tests to validate your new features and understand their impact on your KPIs. If you're new to Statsig, check out our product and cre
Utilities for evaluating user-defined expressions
ECMAScript scope analyzer for ESLint
Load a string as if it was an esm or commonjs module with a given filename.
json serializable rule engine / boolean expression evaluator