Zalgo Promise

The `zalgo-promise` library (current stable version 1.0.48) is a specialized JavaScript promise implementation designed to deviate from the standard asynchronous-by-default behavior of native `Promise` objects. It resolves synchronously unless an explicit asynchronous operation (e.g., `setTimeout`, network request) is introduced within the promise chain. This unique characteristic makes it particularly useful for mitigating specific performance bottlenecks in browser environments, such as issues with `setTimeout` deprioritization in unfocused popup windows, or when polyfilling Promises in older browsers where shims might rely on inefficient asynchronous mechanisms. `zalgo-promise` provides a more direct control over execution flow compared to standard promises, making it a niche but valuable tool for developers facing these particular challenges. While it doesn't have a rapid release cadence, it is actively maintained for its specific use case.