Problems

Spread Merge Unique

EasyES6+ Features

Read two lines, each a JSON array of integers. Merge them with spread syntax, remove duplicates with a Set, and print the result as a JSON array preserving first-seen order.

Input: two lines, each a JSON array. Output: one JSON array.

Your program reads from stdin and prints to stdout.

Example 1

Input: [1,2,3] [3,4,5]

Output: [1,2,3,4,5]

Hints

JavaScriptES6SpreadSet