imagic-timer

A minimalist and robust timer management library for JavaScript.

Provides safe creation, pausing, resuming, and clearing of intervals and timeouts with automatic unique ID generation and error handling.

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Features

• Create and manage multiple intervals and timeouts by unique IDs

• Automatic unique ID generation if not specified

• Pause and resume intervals

• Global and per-timer error handling

• Safe callbacks with error catching to prevent crashes

• Simple and clean API

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Installation

npm install imagic-timer

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Usage

Creating a TimerManager instance

import TimerManager from 'imagic-timer' // or from your local path

const timerManager = new TimerManager({
    id: 'mainTimers', // optional instance ID for logging

    onError: (error, id) => {
        console.error(`Error in timer \${id}:`, error)
    },
})

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Creating and managing intervals

const intervalId = timerManager.createInterval({
    id: 'heartbeat', // optional timer ID; auto-generated if omitted

    callback: () => {
        console.log('Heartbeat interval tick')
    },

    interval: 1000, // milliseconds

    refresh: true, // default true; clears existing interval with same ID before creating

    onError: (error, id) => {
        console.error(`Error in heartbeat interval \${id}:`, error)
    },
})

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Creating and managing timeouts

const timeoutId = timerManager.createTimeout({
    id: 'timeoutExample',

    callback: () => {
        console.log('Timeout finished')
    },

    timeout: 3000,

    refresh: true, // default true; clears existing timeout with same ID before creating

    onError: (error, id) => {
        console.error(`Error in timeout \${id}:`, error)
    },
})

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Clearing timers

timerManager.clearInterval('heartbeat')

timerManager.clearTimeout('timeoutExample')

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Pausing and resuming intervals

timerManager.pauseInterval('heartbeat')

// Resume later, providing callback and interval again:

timerManager.resumeInterval(
    'heartbeat',

    () => {
        console.log('Heartbeat resumed')
    },

    1000
)

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Clearing all timers

timerManager.clearAll()

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License

MIT