wallet-core/node_modules/lodash/_baseXor.js

37 lines
1.1 KiB
JavaScript
Raw Normal View History

2016-11-03 01:33:53 +01:00
var baseDifference = require('./_baseDifference'),
baseFlatten = require('./_baseFlatten'),
2016-10-10 03:43:44 +02:00
baseUniq = require('./_baseUniq');
/**
* The base implementation of methods like `_.xor`, without support for
* iteratee shorthands, that accepts an array of arrays to inspect.
*
* @private
* @param {Array} arrays The arrays to inspect.
* @param {Function} [iteratee] The iteratee invoked per element.
* @param {Function} [comparator] The comparator invoked per element.
* @returns {Array} Returns the new array of values.
*/
function baseXor(arrays, iteratee, comparator) {
2016-11-03 01:33:53 +01:00
var length = arrays.length;
if (length < 2) {
return length ? baseUniq(arrays[0]) : [];
}
2016-10-10 03:43:44 +02:00
var index = -1,
2016-11-03 01:33:53 +01:00
result = Array(length);
2016-10-10 03:43:44 +02:00
while (++index < length) {
2016-11-03 01:33:53 +01:00
var array = arrays[index],
othIndex = -1;
while (++othIndex < length) {
if (othIndex != index) {
result[index] = baseDifference(result[index] || array, arrays[othIndex], iteratee, comparator);
}
}
2016-10-10 03:43:44 +02:00
}
2016-11-03 01:33:53 +01:00
return baseUniq(baseFlatten(result, 1), iteratee, comparator);
2016-10-10 03:43:44 +02:00
}
module.exports = baseXor;