bbo/union_with.js

bbo is a utility library of zero dependencies for javascript.

'use strict';

var _rollupPluginBabelHelpers = require('./internal/_rollupPluginBabelHelpers.js');

/**
 * Returns every element that exists in any of the two arrays once,
 * using a provided comparator function.
 */
var unionWith = (a, b, comp) => {
  return Array.from(new Set([].concat(_rollupPluginBabelHelpers._toConsumableArray(a), _rollupPluginBabelHelpers._toConsumableArray(b.filter(x => a.findIndex(y => comp(x, y)) === -1)))));
};

module.exports = unionWith;