50 lines
1.5 KiB
JavaScript
50 lines
1.5 KiB
JavaScript
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var arrayMap = require('./_arrayMap'),
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baseGet = require('./_baseGet'),
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baseIteratee = require('./_baseIteratee'),
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baseMap = require('./_baseMap'),
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baseSortBy = require('./_baseSortBy'),
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baseUnary = require('./_baseUnary'),
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compareMultiple = require('./_compareMultiple'),
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identity = require('./identity'),
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isArray = require('./isArray');
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/**
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* The base implementation of `_.orderBy` without param guards.
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*
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* @private
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* @param {Array|Object} collection The collection to iterate over.
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* @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by.
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* @param {string[]} orders The sort orders of `iteratees`.
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* @returns {Array} Returns the new sorted array.
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*/
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function baseOrderBy(collection, iteratees, orders) {
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if (iteratees.length) {
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iteratees = arrayMap(iteratees, function(iteratee) {
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if (isArray(iteratee)) {
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return function(value) {
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return baseGet(value, iteratee.length === 1 ? iteratee[0] : iteratee);
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}
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}
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return iteratee;
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});
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} else {
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iteratees = [identity];
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}
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var index = -1;
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iteratees = arrayMap(iteratees, baseUnary(baseIteratee));
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var result = baseMap(collection, function(value, key, collection) {
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var criteria = arrayMap(iteratees, function(iteratee) {
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return iteratee(value);
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});
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return { 'criteria': criteria, 'index': ++index, 'value': value };
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});
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return baseSortBy(result, function(object, other) {
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return compareMultiple(object, other, orders);
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});
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}
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module.exports = baseOrderBy;
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