on-change

Watch an object or array for changes

v5.0.1 URL: https://unpkg.com/on-change@5.0.1/index.js

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emittery

Simple and modern async event emitter

v1.1.0 URL: https://unpkg.com/emittery@1.1.0/index.js

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eventemitter2

A feature-rich Node.js event emitter implementation with namespaces, wildcards, TTL, async listeners and browser/worker support.

v6.4.9 URL: https://unpkg.com/eventemitter2@6.4.9/lib/eventemitter2.js

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p-event

Promisify an event by waiting for it to be emitted

v6.0.1 URL: https://unpkg.com/p-event@6.0.1/index.js

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wrapme

Functions to wrap other functions and methods and to change/enhance their behavior, functionality or usage

v1.1.0 URL: https://unpkg.com/wrapme@1.1.0/dist/wrapme.umd.development.js

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