asynchronous code

noun

UK /eɪˈsɪŋ.krə.nəs kəʊd/

US /eɪˈsɪŋ.krə.nəs koʊd/

Code that can start a task and keep going without waiting for it to finish.

The app uses asynchronous code to download pictures while you keep scrolling.

SYNONYMS

non-blocking code async code concurrent code parallel code

RELATED WORDS

callback promise event loop thread await

OTHER MEANINGS

2. Programming that lets several tasks make progress at the same time without stopping each other.

Asynchronous code keeps the website responsive while it loads data.

3. A style of code where a result arrives later, often through a callback or promise.

She wrote asynchronous code so the button click wouldn't freeze the page.

4. Code that doesn't run in a strict step-by-step order from top to bottom.

With asynchronous code, the second line might finish before the first.