action-debian-package/node_modules/ramda/es/converge.js
Dawid Dziurla 9308795b8b
update
2020-03-26 15:37:35 +01:00

48 lines
1.7 KiB
JavaScript

import _curry2 from "./internal/_curry2.js";
import _map from "./internal/_map.js";
import curryN from "./curryN.js";
import max from "./max.js";
import pluck from "./pluck.js";
import reduce from "./reduce.js";
/**
* Accepts a converging function and a list of branching functions and returns
* a new function. The arity of the new function is the same as the arity of
* the longest branching function. When invoked, this new function is applied
* to some arguments, and each branching function is applied to those same
* arguments. The results of each branching function are passed as arguments
* to the converging function to produce the return value.
*
* @func
* @memberOf R
* @since v0.4.2
* @category Function
* @sig ((x1, x2, ...) -> z) -> [((a, b, ...) -> x1), ((a, b, ...) -> x2), ...] -> (a -> b -> ... -> z)
* @param {Function} after A function. `after` will be invoked with the return values of
* `fn1` and `fn2` as its arguments.
* @param {Array} functions A list of functions.
* @return {Function} A new function.
* @see R.useWith
* @example
*
* const average = R.converge(R.divide, [R.sum, R.length])
* average([1, 2, 3, 4, 5, 6, 7]) //=> 4
*
* const strangeConcat = R.converge(R.concat, [R.toUpper, R.toLower])
* strangeConcat("Yodel") //=> "YODELyodel"
*
* @symb R.converge(f, [g, h])(a, b) = f(g(a, b), h(a, b))
*/
var converge =
/*#__PURE__*/
_curry2(function converge(after, fns) {
return curryN(reduce(max, 0, pluck('length', fns)), function () {
var args = arguments;
var context = this;
return after.apply(context, _map(function (fn) {
return fn.apply(context, args);
}, fns));
});
});
export default converge;