Problems

Promise.all Sum

EasyAsync & Promises

Read a JSON array of integers. Wrap each in Promise.resolve, await them all with Promise.all, and print the sum of the resolved values.

Input: one JSON array. Output: the sum.

Your program reads from stdin and prints to stdout.

Example 1

Input: [1,2,3]

Output: 6

Hints

JavaScriptPromisesAsync