https://github.com/ink-feather-org/ts-utils

Contains various typescript utils.
https://github.com/ink-feather-org/ts-utils

async-await promise-chain promises typescript utility

Last synced: about 7 hours ago
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Contains various typescript utils.

• Host: GitHub
• URL: https://github.com/ink-feather-org/ts-utils
• Owner: ink-feather-org
• License: gpl-3.0
• Created: 2022-02-24T10:15:58.000Z (over 2 years ago)
• Default Branch: main
• Last Pushed: 2022-10-18T09:17:46.000Z (about 2 years ago)
• Last Synced: 2024-11-16T14:07:11.534Z (about 7 hours ago)
• Topics: async-await, promise-chain, promises, typescript, utility
• Language: TypeScript
• Homepage:
• Size: 261 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md
  • License: LICENSE

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README

        
# @ink-feather-org/ts-utils

[![NPM Main CI](https://github.com/ink-feather-org/ts-utils/actions/workflows/npm_main.yml/badge.svg)](https://github.com/ink-feather-org/ts-utils/actions/workflows/npm_main.yml)

[Typedoc](https://ink-feather-org.github.io/ts-utils/)

This repository contains various util classes for typescript.

As they do not have external dependencies and are rather small I decided to cram them together into this package.

## CancelableAsyncFlow

The CancelableAsyncFlow wraps a generator function and allows progress through the generator to be observed.

Furthermore, it provides cancellation facilities to abort the generator execution early.

## PromiseChain

A promise chain is comparable to an asio::strand.

It allows promises to be executed in a specific order one at a time.

```typescript

import { PromiseChain, delay } from "@ink-feather-org/ts-utils"

/**

 * Both chains will execute in parallel but their individual queues will execute synchronously.

 */

async function main(): Promise {

    const chain1 = new PromiseChain()

    const chain2 = new PromiseChain()

    chain1.enqueue(async () => {

        console.log('C1 DELAY 1 START')

        await delay(2000)

        console.log('C1 DELAY 1 DONE')

    })

    const last1 = chain1.enqueue(async () => {

        console.log('C1 DELAY 2 START')

        await delay(2000)

        console.log('C1 DELAY 2 DONE')

    })

    chain2.enqueue(async () => {

        console.log('C2 DELAY 1 START')

        await delay(500)

        console.log('C2 DELAY 1 DONE')

    })

    const last2 = chain2.enqueue(async () => {

        console.log('C2 DELAY 2 START')

        await delay(1000)

        console.log('C2 DELAY 2 DONE')

        return 2

    })

    await last1

    return await last2

}

```

## tsutils

Minor typescript helper functions.

## Functions

* `equalsIgnoreCase`

* `getRandomArbitrary`

* `getRandomInt`

* `getRandomIntMatching`

* `storageAvailable`

* `getFileExtension`

* `intOrNaN`

* `delay`

* `impl` - Tests if an object declaration matches a specific typescript type.

### Types

* `GeneralAsyncFunction` - A generic type for promise based async functions.

* `PromiseResolveFunction` - Type of promise resolve function.

* `PromiseRejectFunction` - Type of promise reject function.