callbacks

by REPLY2SAGAR

JavaScript

function readFile(filePath, callback) {
    setTimeout(() => { // Simulate a file read delay
        const fileResult = "File content of " + filePath;
        callback(null, fileResult);
    }, 1000);
}

readFile("example.txt", (err, content) => {
    if (err) {
        console.error("Error reading file:", err);
    } else {
        console.log("Received file content:", content);
    }
});