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What is callback in JavaScript explained in 60seconds javascript
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What is callback in #javascript ? here is a fun way to explain this concept in under 60 seconds. • Imagine that you're at a busy restaurant and you just ordered food. • The server tells you that your food will be ready soon, but in the meantime, you decide to pass the time by watching a movie on your phone. You started the movie, but you also want to make sure you know when your food is ready. • So you give your phone a special instruction: When my food is ready, make a loud sound You go back to movies. • In this scenario, the special instruction you gave your phone is like a callback function in JavaScript. • A callback function is a function that is passed as an argument to another function and is executed once that function completes its task. • It's like telling your phone to execute a specific task (making a loud beeping noise) once another task (your food being ready) is complete. • Just like the callback function in JavaScript, you don't have to constantly check for the completion of a task. You can tell the function to execute a specific task once it's done, and then move on to other tasks in the meantime. • This makes callbacks a powerful tool for creating efficient and organized code, just like your phone's ability to notify you when your food is ready.
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