# curryRight
> Transform a function into a sequence of functions each accepting a single argument.
## Usage
```javascript
var curryRight = require( '@stdlib/utils/curry-right' );
```
#### curryRight( fcn\[, arity]\[, thisArg] )
Transforms a function into a sequence of functions each accepting a single argument.
```javascript
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.
```javascript
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.
```javascript
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.
```javascript
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.
```javascript
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`][@stdlib/utils/curry] is the order in which arguments are applied. This function applies arguments starting from the right.
## Examples
```javascript
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 );
```
[@stdlib/utils/curry]: https://www.npmjs.com/package/@stdlib/utils/tree/main/curry