Callback

A 'callback' refers to a response or return call made to a person, a system, or a function. It can also denote a repeat of a performance or audition, usually for individuals initially deemed promising. In programming, a callback is a function passed as an argument to another function, which is intended to be executed at a specific time or in response to a particular event. Further, 'callback' can also define a request for a response that is returned at a later time.

Callback meaning with examples

• After submitting my job application, the hiring manager promised a callback within a week. I anxiously waited, reviewing my resume daily. Finally, on day six, the phone rang! It was the company, inviting me for a second interview. The callback signaled progress and hope in my job search. This was the final step before an offer!
• The audition was intense, but after the first round, only a few received a callback. The musicians prepared for the callback. The director asked the musicians to sing songs from different time periods and genres to show versatility. My fingers were crossed and they sang there hearts out, hoping for the best, and were told to await a decision by email.
• In the JavaScript code, the `setTimeout` function uses a callback. The passed callback function executes after a specified delay. This callback is useful for handling asynchronous operations, such as loading data from a server. This allows the rest of the code to continue running without waiting.
• When the customer service representative was busy, they promised a callback within the hour. The system took the customers information and told the caller to hold. The rep could call the customer back when they were free. The callback guaranteed resolution of their issue at a more convenient time, minimizing wait times and keeping customers happy.