| var arrayMap = require('./_arrayMap'), |
| baseIteratee = require('./_baseIteratee'), |
| baseMap = require('./_baseMap'), |
| baseSortBy = require('./_baseSortBy'), |
| baseUnary = require('./_baseUnary'), |
| compareMultiple = require('./_compareMultiple'), |
| identity = require('./identity'); |
| |
| /** |
| * The base implementation of `_.orderBy` without param guards. |
| * |
| * @private |
| * @param {Array|Object} collection The collection to iterate over. |
| * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by. |
| * @param {string[]} orders The sort orders of `iteratees`. |
| * @returns {Array} Returns the new sorted array. |
| */ |
| function baseOrderBy(collection, iteratees, orders) { |
| var index = -1; |
| iteratees = arrayMap(iteratees.length ? iteratees : [identity], baseUnary(baseIteratee)); |
| |
| var result = baseMap(collection, function(value, key, collection) { |
| var criteria = arrayMap(iteratees, function(iteratee) { |
| return iteratee(value); |
| }); |
| return { 'criteria': criteria, 'index': ++index, 'value': value }; |
| }); |
| |
| return baseSortBy(result, function(object, other) { |
| return compareMultiple(object, other, orders); |
| }); |
| } |
| |
| module.exports = baseOrderBy; |