wait

@alwatr/wait

@alwatr/wait offers a collection of utility functions to handle asynchronous execution flow effectively. It allows you to pause your code until specific conditions are met or certain events occur. This functionality aids in managing complex asynchronous scenarios and crafting intricate flows with ease. The functions can be used independently or combined for robust control over asynchronous operations.

Installation

npm install @alwatr/wait

yarn add @alwatr/wait

Usage

Each function within @alwatr/wait returns a Promise that resolves when the specified waiting condition is met. Here's a breakdown of the available functions:

• waitForTimeout(duration: number): Promise

  • Waits for a specified duration (in milliseconds) before resolving.

  • Example:

    import { waitForTimeout } from '@alwatr/wait';
    
    await waitForTimeout(1000); // Waits for 1 second

• waitForAnimationFrame(): Promise

  • Pauses execution until the next animation frame is scheduled, resolving with the current timestamp.

  • Useful for synchronizing UI updates with browser rendering.

  • Example:

    import { waitForAnimationFrame } from '@alwatr/wait';
    
    await waitForAnimationFrame(); // Waits for next animation frame

• waitForIdle(timeout?: number): Promise

  • Waits for the next idle period (when the browser is not busy), resolving with an IdleDeadline object.

  • Optionally accepts a timeout value (in milliseconds) for maximum waiting time.

  • Ideal for executing tasks that don't impact user experience.

  • Example:

    import { waitForIdle } from '@alwatr/wait';
    
    await waitForIdle(); // Waits for next idle period

• waitForDomEvent(element: HTMLElement, eventName: T): Promise<HTMLElementEventMap[T]>

  • Pauses execution until a specific DOM event is triggered on a provided element, resolving with the event object.

  • Example:

    import { waitForDomEvent } from '@alwatr/wait';
    
    const button = document.getElementById('myButton');
    await waitForDomEvent(button, 'click'); // Waits for click event on button

• waitForEvent(target: HasAddEventListener, eventName: string): Promise

  • More generic version of waitForDomEvent, allowing waiting for any event on any object with an addEventListener method.

  • Example:

    import { waitForEvent } from '@alwatr/wait';
    
    const server = http.createServer();
    await waitForEvent(server, 'request'); // Waits for request event on server

• waitForImmediate(): Promise

  • Executes the next task in the microtask queue immediately after the current task finishes.

  • Example:

    import { waitForImmediate } from '@alwatr/wait';
    
    await waitForImmediate(); // Executes next microtask

• waitForMicrotask(): Promise

  • Similar to waitForImmediate, but waits specifically for the next microtask queue.

  • Example:

    import { waitForMicrotask } from '@alwatr/wait';
    
    await waitForMicrotask(); // Waits for next microtask queue

Contributing

We welcome contributions to improve this package! Feel free to open bug reports, suggest new features, or submit pull requests following our contribution guidelines.

License:

This package is distributed under the MIT License.