DEV Community

Laxman Nemane
Laxman Nemane

Posted on

2

Async/Await Demystified πŸ’¬πŸ’‘

The most fascinating topic to learn about today is highly beneficial for every JavaScript developer.πŸš€ πŸ–₯️.

async/await :

  • It is primarily used for managing asynchronous code.
  • async and await are syntax enhancements in JavaScript that make it easier to work with Promises. They allow you to write asynchronous code that looks and behaves like synchronous code.

  • async: You can add the async keyword before a function to make it an asynchronous function. An async function always returns a Promise.

  • awaitβŒ›: You use the await keyword inside an async function to pause the execution of the function until the Promise is settled.

Error Handling πŸ”΄:
Handling errors in async/await is done using try/catch blocks, just like with synchronous code.

async function fetchData() {
  try {
    let response = await fetch("URL");
    if (!response.ok) throw new Error("Network response was not ok");
    let data = await response.json();
    console.log(data);
  } catch (error) { 
// the error will be caught in the catch() block 
    console.error("Error fetching data:", error);
  }
}

fetchData();
Enter fullscreen mode Exit fullscreen mode

Thank you for reading! 😊🌟

Top comments (0)

nextjs tutorial video

Youtube Tutorial Series πŸ“Ί

So you built a Next.js app, but you need a clear view of the entire operation flow to be able to identify performance bottlenecks before you launch. But how do you get started? Get the essentials on tracing for Next.js from @nikolovlazar in this video series πŸ‘€

Watch the Youtube series