papplyRight

    Partially apply function arguments from the right.

    Usage

    var papplyRight = require( '@stdlib/utils/papply-right' );
    

    papplyRight( fcn[, ...args] )

    Partially applies function arguments from the right.

    function say( text, name ) {
        return text + ', ' + name + '.';
    }
    
    var toSusan = papplyRight( say, 'Susan B. Anthony' );
    
    var str = toSusan( 'Thank you' );
    // returns 'Thank you, Susan B. Anthony.'
    
    str = toSusan( 'Never forget' );
    // returns 'Never forget, Susan B. Anthony.'
    

    Notes

    • The implementation does not set the length of the returned function. Accordingly, the returned function length is always 0.
    • The evaluation context is always null.
    • The difference between this function and papply is the order in which arguments are applied. This function fixes the rightmost arguments.

    Examples

    var randu = require( '@stdlib/random/base/randu' );
    var floor = require( '@stdlib/math/base/special/floor' );
    var papplyRight = require( '@stdlib/utils/papply-right' );
    
    var fcn;
    var x;
    var y;
    var z;
    var v;
    var i;
    
    function add( x, y, z, w, t, s ) {
        return x + y + z + w + t + s;
    }
    
    fcn = papplyRight( add, 5, 4, 3 );
    
    for ( i = 0; i < 100; i++ ) {
        x = floor( randu() * 5 );
        y = floor( randu() * 10 );
        z = floor( randu() * 15 );
        v = fcn( x, y, z );
        console.log( '%d+%d+%d+5+4+3 = %d', x, y, z, v );
    }