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    @async-generators/concat
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    0.1.0 • Public • Published

    concat

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    concatenate several iterable sequences sequentially

    NPM version Travis Status Travis Status

    Usage

    package requires a system that supports async-iteration, either natively or via down-compiling

    Install

    npm install @async-generators/concat --save
    yarn add @async-generators/concat
    

    This package's main entry points to a commonjs distribution.

    Additionally, the module entry points to a es2015 distribution, which can be used by build systems, such as webpack, to directly use es2015 modules.

    Api

    concat(...source)

    concat() yields each sequence in the order passed to concat.

    each object in ...source must be have a [Symbol.asyncIterator] or [Symbol.iterator] property.

    Example

    example.js

    const concat = require('@async-generators/concat').default;
    
    async function main() {
      let a = async function* () {
        yield 1; yield 2;
      }
      let b = function* () {
        yield 3;
      }
      let c = () => [ 4 ]
    
      for await (let item of concat(a(), b(), c())) {
        console.log(item);
      }
    }
    main();

    Execute with the latest node.js:

    node --harmony-async-iteration example.js
    

    output:

    1
    2
    3
    4
    

    Typescript

    This library is fully typed and can be imported using:

    import concat from '@async-generators/concat');

    It is also possible to directly execute your properly configured typescript with ts-node:

    ts-node --harmony_async_iteration example.ts
    

    Install

    npm i @async-generators/concat

    DownloadsWeekly Downloads

    8

    Version

    0.1.0

    License

    MIT

    Last publish

    Collaborators

    • meirionhughes