You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
44 lines
1.6 KiB
44 lines
1.6 KiB
import compareAscending from './_compareAscending.js'; |
|
|
|
/** |
|
* Used by `_.orderBy` to compare multiple properties of a value to another |
|
* and stable sort them. |
|
* |
|
* If `orders` is unspecified, all values are sorted in ascending order. Otherwise, |
|
* specify an order of "desc" for descending or "asc" for ascending sort order |
|
* of corresponding values. |
|
* |
|
* @private |
|
* @param {Object} object The object to compare. |
|
* @param {Object} other The other object to compare. |
|
* @param {boolean[]|string[]} orders The order to sort by for each property. |
|
* @returns {number} Returns the sort order indicator for `object`. |
|
*/ |
|
function compareMultiple(object, other, orders) { |
|
var index = -1, |
|
objCriteria = object.criteria, |
|
othCriteria = other.criteria, |
|
length = objCriteria.length, |
|
ordersLength = orders.length; |
|
|
|
while (++index < length) { |
|
var result = compareAscending(objCriteria[index], othCriteria[index]); |
|
if (result) { |
|
if (index >= ordersLength) { |
|
return result; |
|
} |
|
var order = orders[index]; |
|
return result * (order == 'desc' ? -1 : 1); |
|
} |
|
} |
|
// Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications |
|
// that causes it, under certain circumstances, to provide the same value for |
|
// `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247 |
|
// for more details. |
|
// |
|
// This also ensures a stable sort in V8 and other engines. |
|
// See https://bugs.chromium.org/p/v8/issues/detail?id=90 for more details. |
|
return object.index - other.index; |
|
} |
|
|
|
export default compareMultiple;
|
|
|