Yang Guo | 4fd355c | 2019-09-19 08:59:03 | [diff] [blame] | 1 | var baseExtremum = require('./_baseExtremum'), |
| 2 | baseIteratee = require('./_baseIteratee'), |
| 3 | baseLt = require('./_baseLt'); |
| 4 | |
| 5 | /** |
| 6 | * This method is like `_.min` except that it accepts `iteratee` which is |
| 7 | * invoked for each element in `array` to generate the criterion by which |
| 8 | * the value is ranked. The iteratee is invoked with one argument: (value). |
| 9 | * |
| 10 | * @static |
| 11 | * @memberOf _ |
| 12 | * @since 4.0.0 |
| 13 | * @category Math |
| 14 | * @param {Array} array The array to iterate over. |
| 15 | * @param {Function} [iteratee=_.identity] The iteratee invoked per element. |
| 16 | * @returns {*} Returns the minimum value. |
| 17 | * @example |
| 18 | * |
| 19 | * var objects = [{ 'n': 1 }, { 'n': 2 }]; |
| 20 | * |
| 21 | * _.minBy(objects, function(o) { return o.n; }); |
| 22 | * // => { 'n': 1 } |
| 23 | * |
| 24 | * // The `_.property` iteratee shorthand. |
| 25 | * _.minBy(objects, 'n'); |
| 26 | * // => { 'n': 1 } |
| 27 | */ |
| 28 | function minBy(array, iteratee) { |
| 29 | return (array && array.length) |
| 30 | ? baseExtremum(array, baseIteratee(iteratee, 2), baseLt) |
| 31 | : undefined; |
| 32 | } |
| 33 | |
| 34 | module.exports = minBy; |