Is there a way to short circuit async/await flow?

Question

async function update() {
   var urls = await getCdnUrls();
   var metadata = await fetchMetaData(urls);
   var content = await fetchContent(metadata);
   await rend         


        

Answer 1

Here is a simple exemple with a promise:

let resp = await new Promise(function(resolve, reject) {
    // simulating time consuming process
    setTimeout(() => resolve('Promise RESOLVED !'), 3000);
    // hit a button to cancel the promise
    $('#btn').click(() => resolve('Promise CANCELED !'));
});

Please see this codepen for a demo