Exercise 8.2 Timestamped logs

exercise_8_2.js

function createConsoleProxy(console) {
    return new Proxy(console, {
        get: (target, property) => {
            
            const proxyFunctionNames = ["log", "error", "debug", "info"];
            if (proxyFunctionNames.includes(property)) {
                return function (...argumentList) {
                    const isoDate = new Date().toISOString();
                    // Every argument after argumentList[0] will be used as substitution values
                    const newMessage = `${isoDate}: ${argumentList[0]}`;
                    return target[property](newMessage, ...argumentList.slice(1));
                }
            }
            return target[property];
        }
    });
}

// To test property access
console.logMessage = "I´m a log message. %s";
console.infoMessage = "I´m a info message. %s";
console.debugMessage = "I´m a debug message. %s";
console.errorMessage = "I´m a error message. %s";

// Create that ....
const consoleProxy = createConsoleProxy(console);

// Test this stuff
consoleProxy.log(consoleProxy.logMessage, "Test")
consoleProxy.info(consoleProxy.infoMessage, "Test")
consoleProxy.debug(consoleProxy.debugMessage, "Test")
consoleProxy.error(consoleProxy.errorMessage, "Test")