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    @stdlib/utils-curry-right
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    0.0.8 • Public • Published

    curryRight

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    Transform a function into a sequence of functions each accepting a single argument.

    Installation

    npm install @stdlib/utils-curry-right

    Usage

    var curryRight = require( '@stdlib/utils-curry-right' );

    curryRight( fcn[, arity][, thisArg] )

    Transforms a function into a sequence of functions each accepting a single argument.

    function add( x, y ) {
        return x + y;
    }
    
    var fcn = curryRight( add );
    
    var sum = fcn( 2 )( 3 );
    // returns 5

    By default, arity is equal to fcn.length. For functions without explicit parameters, provide an arity argument.

    function add() {
        return arguments[ 0 ] + arguments[ 1 ];
    }
    
    var fcn = curryRight( add, 2 );
    
    var sum = fcn( 2 )( 3 );
    // returns 5

    To specify the curried function execution context, provide a thisArg argument.

    var obj = {
        'name': 'Ada',
        'greet': function greet( word1, word2 ) {
            return word1 + ' ' + word2 + ', ' + this.name + '!';
        }
    };
    
    var fcn = curryRight( obj.greet, obj );
    
    var str = fcn( 'there' )( 'Hello' );
    // returns 'Hello there, Ada!'

    The function supports providing both an arity and execution context.

    var obj = {
        'name': 'Ada',
        'greet': function greet() {
            return arguments[ 0 ] + ' ' + arguments[ 1 ] + ', ' + this.name + '!';
        }
    };
    
    var fcn = curryRight( obj.greet, 2, obj );
    
    var str = fcn( 'there' )( 'Hello' );
    // returns 'Hello there, Ada!'

    Notes

    • Until return value resolution, each invocation returns a new partially applied curry function.

      function add( x, y, z ) {
          return x + y + z;
      }
      
      var fcn = curryRight( add );
      
      var s0 = fcn( 1 )( 2 )( 3 );
      // returns 6
      
      s0 = fcn( -1 )( -2 )( -3 );
      // returns -6
      
      s0 = fcn( 10 )( 20 )( 30 );
      // returns 60
      
      // Return a partially applied curry function:
      var f1 = fcn( 3 );
      
      var s1 = f1( 4 )( 5 );
      // returns 12
      
      s1 = f1( 6 )( 7 );
      // returns 16
      
      s1 = f1( 8 )( 9 );
      // returns 20
      
      // Return a partially applied curry function:
      var f2 = fcn( 4 )( 5 );
      
      var s2 = f2( 6 );
      // returns 15
      
      s2 = f2( 70 );
      // returns 79
      
      s2 = f2( 700 );
      // returns 709
    • The difference between this function and curry is the order in which arguments are applied. This function applies arguments starting from the right.

    Examples

    var curryRight = require( '@stdlib/utils-curry-right' );
    
    var fcn;
    var out;
    var i;
    
    function add( x, y, z, w, t, s ) {
        return x + y + z + w + t + s;
    }
    
    fcn = curryRight( add );
    out = fcn;
    for ( i = 0; i < add.length; i++ ) {
        out = out( i*10 );
    }
    console.log( out );

    See Also


    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 © 2016-2022. The Stdlib Authors.

    Install

    npm i @stdlib/utils-curry-right

    Homepage

    stdlib.io

    DownloadsWeekly Downloads

    25

    Version

    0.0.8

    License

    Apache-2.0

    Unpacked Size

    42.6 kB

    Total Files

    9

    Last publish

    Collaborators

    • stdlib-bot
    • kgryte
    • planeshifter
    • rreusser