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About stdlib...

We believe in a future in which the web is a preferred environment for numerical computation. To help realize this future, we've built stdlib. stdlib is a standard library, with an emphasis on numerical and scientific computation, written in JavaScript (and C) for execution in browsers and in Node.js.

The library is fully decomposable, being architected in such a way that you can swap out and mix and match APIs and functionality to cater to your exact preferences and use cases.

When you use stdlib, you can be absolutely certain that you are using the most thorough, rigorous, well-written, studied, documented, tested, measured, and high-quality code out there.

To join us in bringing numerical computing to the web, get started by checking us out on GitHub, and please consider financially supporting stdlib. We greatly appreciate your continued support!

uncurryRight

NPM version Build Status Coverage Status

Transform a curried function into a function invoked with multiple arguments.

Usage

import uncurryRight from 'https://cdn.jsdelivr.net/gh/stdlib-js/utils-uncurry-right@esm/index.mjs';

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

Transforms a curried function into a function invoked with multiple arguments.

function add( y ) {
    return function add( x ) {
        return x + y;
    };
}

var fcn = uncurryRight( add );

var sum = fcn( 3, 2 );
// returns 5

To enforce a fixed number of parameters, provide an arity argument.

function add( y ) {
    return function add( x ) {
        return x + y;
    };
}

var fcn = uncurryRight( add, 2 );

var sum = fcn( 9 );
// throws <Error>

To specify an execution context, provide a thisArg argument.

function addY( y ) {
    this.y = y;
    return addX;
}

function addX( x ) {
    return x + this.y;
}

var fcn = uncurryRight( addY, {} );

var sum = fcn( 3, 2 );
// returns 5

The function supports providing both an arity and execution context.

function addY( y ) {
    this.y = y;
    return addX;
}

function addX( x ) {
    return x + this.y;
}

var fcn = uncurryRight( addY, 2, {} );

var sum = fcn( 3, 2 );
// returns 5

sum = fcn( 4 );
// throws <Error>

Notes

  • The difference between this function and uncurry is the order in which arguments are applied. This function applies arguments starting from the right.

Examples

<!DOCTYPE html>
<html lang="en">
<body>
<script type="module">

import fromCodePoint from 'https://cdn.jsdelivr.net/gh/stdlib-js/string-from-code-point@esm/index.mjs';
import curryRight from 'https://cdn.jsdelivr.net/gh/stdlib-js/utils-curry-right@esm/index.mjs';
import uncurryRight from 'https://cdn.jsdelivr.net/gh/stdlib-js/utils-uncurry-right@esm/index.mjs';

var uncurried;
var curried;
var abcs;
var out;
var a;
var i;

function concat() {
    var len;
    var out;
    var i;

    len = arguments.length;
    out = '';
    for ( i = 0; i < len; i++ ) {
        out += arguments[ i ];
        if ( i < len-1 ) {
            out += ',';
        }
    }
    return out;
}

// Character codes:
a = 97;

abcs = new Array( 26 );
for ( i = 0; i < abcs.length; i++ ) {
    abcs[ i ] = fromCodePoint( a + i );
}
out = concat.apply( null, abcs );
// returns 'a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z'

// Transform `concat` into a right curried function:
curried = curryRight( concat, 26 );

out = curried;
for ( i = abcs.length-1; i >= 0; i-- ) {
    out = out( abcs[ i ] );
}
console.log( out );
// => 'a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z'

// Uncurry a right curried function:
uncurried = uncurryRight( curried );

out = uncurried.apply( null, abcs );
// returns 'a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z'

</script>
</body>
</html>

See Also

Notice

This package is part of stdlib, a standard library 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.

Community

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License

See LICENSE.

Copyright

Copyright © 2016-2024. The Stdlib Authors.