| var arrayExtremum = require('./arrayExtremum'), |
| baseCallback = require('./baseCallback'), |
| baseExtremum = require('./baseExtremum'), |
| isArray = require('../lang/isArray'), |
| isIterateeCall = require('./isIterateeCall'), |
| toIterable = require('./toIterable'); |
| |
| /** |
| * Creates a `_.max` or `_.min` function. |
| * |
| * @private |
| * @param {Function} comparator The function used to compare values. |
| * @param {*} exValue The initial extremum value. |
| * @returns {Function} Returns the new extremum function. |
| */ |
| function createExtremum(comparator, exValue) { |
| return function(collection, iteratee, thisArg) { |
| if (thisArg && isIterateeCall(collection, iteratee, thisArg)) { |
| iteratee = undefined; |
| } |
| iteratee = baseCallback(iteratee, thisArg, 3); |
| if (iteratee.length == 1) { |
| collection = isArray(collection) ? collection : toIterable(collection); |
| var result = arrayExtremum(collection, iteratee, comparator, exValue); |
| if (!(collection.length && result === exValue)) { |
| return result; |
| } |
| } |
| return baseExtremum(collection, iteratee, comparator, exValue); |
| }; |
| } |
| |
| module.exports = createExtremum; |