Callback Function
1234567891011121314151617181920212223
// A function that simulates a long-running task using a timeout
function fetchData(callback) {
console.log("Fetching data... Please wait.");
// Simulate a network request using setTimeout
setTimeout(() => {
console.log("Data fetched successfully!");
const data = { name: "Martins", age: 24 };
// Call the callback function with the fetched data
callback(data);
}, 2000); // 2-second delay to simulate async operation
}
// A callback function to handle the fetched data
function displayData(data) {
console.log("Displaying data:");
console.log(`Name: ${data.name}`);
console.log(`Age: ${data.age}`);
}
// Call the function with the callback
fetchData(displayData);
JavaScript
INFO