@writetome51/array-get-adjacent-at
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    3.0.3 • Public • Published

    getAdjacentAt<T>(
           startingIndex: number,
           howMany: number,
           array: T[]
    ): T[]

    Beginning at startingIndex, returns howMany adjacent items from array.
    Does not modify array. startingIndex can be negative or positive.
    Intended as a replacement of Array.prototype.slice() . It strictly validates args.

    Examples

    let arr = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
    getAdjacentAt(0, 3, arr);
    // --> [1,2,3]
    
    getAdjacentAt(2, 5, arr);
    // --> [3,4,5,6,7]
    
    // You can pass a negative index:
    getAdjacentAt(-3, 2, arr);
    // --> [8, 9]
    
    getAdjacentAt(-2, 3, arr); // Requesting one too may items
    //Error: 'the array does not have enough items to fulfill your request'

    Installation

    npm i @writetome51/array-get-adjacent-at

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    import { getAdjacentAt } from '@writetome51/array-get-adjacent-at';

    Install

    npm i @writetome51/array-get-adjacent-at

    DownloadsWeekly Downloads

    19

    Version

    3.0.3

    License

    MIT

    Unpacked Size

    3.63 kB

    Total Files

    5

    Last publish

    Collaborators

    • writetome51