[TypeScript][lodash] toggle処理（Arrayが値を持っていればremove、なければadd）

// xor
const list = ["a", "b", "c"]

console.log(xor(list, ["d"]))
// add => ["a", "b", "c", "d"]
console.log(xor(list, ["b"]))
// remove => ["a", "c"]

// xorBy
list = [{id: 1}, {id: 2}, {id: 3}]

console.log(xorBy(list, [{id: 4}], item => item.id));
// add => [Object {id: 1}, Object {id: 2}, Object {id: 3}, Object {id: 4}]
console.log(xorBy(list, [{id: 2}], item => item.id)); 
// remove => [Object {id: 1}, Object {id: 3}]

REF

• https://stackoverflow.com/a/37041417
• https://lodash.com/docs/4.17.15#xor
• https://lodash.com/docs/4.17.15#xorBy