write delay in js code example

Example 1: javascript wait 10 seconds

setTimeout(function () {
        // ...
    }, 10000);

// or

.then(() => {
  // ...
  ({ timeout: 10000 });
      });

Example 2: javascipt delay

async function delay(delayInms) {
      return new Promise(resolve  => {
        setTimeout(() => {
          resolve(2);
        }, delayInms);
      });
    }
    async function sample() {
      console.log('a');
      console.log('waiting...')
      let delayres = await delay(3000);
      console.log('b');
    }
    sample();