@extra-array/symmetric-difference/example.js

Gives values not present in both arrays.

const array = require("extra-array");

var x = [1, 2, 3, 4];
var y = [3, 4, 5];
array.symmetricDifference(x, y);

var y = [-3, -4, -5];
array.symmetricDifference(x, y);

array.symmetricDifference(x, y, (a, b) => Math.abs(a) - Math.abs(b));

array.symmetricDifference(x, y, null, v => Math.abs(v));