onetime

Ensure a function is only called once

v7.0.0 URL: https://unpkg.com/onetime@7.0.0/index.js

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once function one onetime func fn single call called prevent

once

Run a function exactly one time

v1.4.0 URL: https://unpkg.com/once@1.4.0/once.js

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once function one single

eventemitter3

EventEmitter3 focuses on performance while maintaining a Node.js AND browser compatible interface.

v5.0.1 URL: https://unpkg.com/eventemitter3@5.0.1/index.js

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EventEmitter EventEmitter2 EventEmitter3 Events addEventListener addListener emit emits emitter event once pub/sub publish reactor subscribe

emittery

Simple and modern async event emitter

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

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event emitter eventemitter events async emit on once off listener subscribe unsubscribe pubsub tiny addlistener addeventlistener dispatch dispatcher observer trigger await promise typescript ts typed

lodash.once

The lodash method `_.once` exported as a module.

v4.1.1 URL: https://unpkg.com/lodash.once@4.1.1/index.js

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lodash-modularized once