Combination of async function + await + setTimeout

Question

I am trying to use the new async features and I hope solving my problem will help others in the future. This is my code which is working:

  async function as         


        

Answer 1

The following code works in Chrome and Firefox and maybe other browsers.

function timeout(ms) {
    return new Promise(resolve => setTimeout(resolve, ms));
}
async function sleep(fn, ...args) {
    await timeout(3000);
    return fn(...args);
}

But in Internet Explorer I get a Syntax Error for the "(resolve **=>** setTimeout..."