async-limiter

A lightweight job queue for limiting concurrent execution of asynchronous functions. Current stable version is 2.0.0, with low release cadence (last major update in 2020). It implements an Array-like API (push, unshift, splice) to add tasks and supports both callback and promise-based functions. Differentiators: minimal overhead, simple concurrency control (default Infinity), and a clear motivation to avoid performance pitfalls (e.g., zlib with infinite concurrency). Unlike heavyweight libraries like p-limit or bottleneck, it prioritizes simplicity and zero additional dependencies.