minBy.js•739 B
var _curry3 = require('./internal/_curry3');
/**
* Takes a function and two values, and returns whichever value produces the
* smaller result when passed to the provided function.
*
* @func
* @memberOf R
* @since v0.8.0
* @category Relation
* @sig Ord b => (a -> b) -> a -> a -> a
* @param {Function} f
* @param {*} a
* @param {*} b
* @return {*}
* @see R.min, R.maxBy
* @example
*
* // square :: Number -> Number
* var square = n => n * n;
*
* R.minBy(square, -3, 2); //=> 2
*
* R.reduce(R.minBy(square), Infinity, [3, -5, 4, 1, -2]); //=> 1
* R.reduce(R.minBy(square), Infinity, []); //=> Infinity
*/
module.exports = _curry3(function minBy(f, a, b) {
return f(b) < f(a) ? b : a;
});