what is javascript concurrency code example

Example 1: javascript concurrency

const [someResult, anotherResult] = await Promise.all([someCall(), anotherCall()]);

Example 2: javascript concurrency

// Call both functions
const somePromise = someCall();
const anotherPromise = anotherCall();

// Await both promises    
const someResult = await somePromise;
const anotherResult = await anotherPromise;