@stdlib/utils-until
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    0.0.7 • Public • Published

    until

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    Invoke a function until a test condition is true.

    Installation

    npm install @stdlib/utils-until

    Usage

    var until = require( '@stdlib/utils-until' );

    until( predicate, fcn[, thisArg ] )

    Invokes a function until a predicate function returns true.

    function predicate( i ) {
        return ( i >= 5 );
    }
    
    function beep( i ) {
        console.log( 'boop: %d', i );
    }
    
    until( predicate, beep );
    /* =>
        boop: 0
        boop: 1
        boop: 2
        boop: 3
        boop: 4
    */

    Both the predicate function and the function to invoke are provided a single argument:

    • i: iteration number (starting from zero)

    To set the function execution context for the invoked function, provide a thisArg.

    function predicate( i ) {
        return ( i >= 5 );
    }
    
    function count() {
        this.count += 1;
    }
    
    var context = {
        'count': 0
    };
    
    until( predicate, count, context );
    
    console.log( context.count );
    // => 5

    Examples

    var randu = require( '@stdlib/random-base-randu' );
    var until = require( '@stdlib/utils-until' );
    
    function predicate() {
        return ( randu() <= 0.05 );
    }
    
    function log( i ) {
        console.log( i );
    }
    
    until( predicate, log );

    Notice

    This package is part of stdlib, a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.

    For more information on the project, filing bug reports and feature requests, and guidance on how to develop stdlib, see the main project repository.

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    License

    See LICENSE.

    Copyright

    Copyright © 2016-2021. The Stdlib Authors.

    Install

    npm i @stdlib/utils-until

    Homepage

    stdlib.io

    DownloadsWeekly Downloads

    3

    Version

    0.0.7

    License

    Apache-2.0

    Unpacked Size

    37.9 kB

    Total Files

    9

    Last publish

    Collaborators

    • stdlib-bot
    • kgryte
    • planeshifter
    • rreusser