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35 lines
1.2 KiB
JavaScript
35 lines
1.2 KiB
JavaScript
var baseCompareAscending = require('./baseCompareAscending');
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/**
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* Used by `_.sortByAll` to compare multiple properties of each element
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* in a collection and stable sort them in ascending order.
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*
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* @private
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* @param {Object} object The object to compare to `other`.
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* @param {Object} other The object to compare to `object`.
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* @returns {number} Returns the sort order indicator for `object`.
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*/
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function compareMultipleAscending(object, other) {
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var index = -1,
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objCriteria = object.criteria,
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othCriteria = other.criteria,
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length = objCriteria.length;
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while (++index < length) {
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var result = baseCompareAscending(objCriteria[index], othCriteria[index]);
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if (result) {
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return result;
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}
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}
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// Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications
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// that causes it, under certain circumstances, to provide the same value for
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// `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247
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// for more details.
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//
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// This also ensures a stable sort in V8 and other engines.
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// See https://code.google.com/p/v8/issues/detail?id=90 for more details.
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return object.index - other.index;
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}
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module.exports = compareMultipleAscending;
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