添加日志以存储有关用户操作 JavaScript 的信息

Question

我为此创建了一个函数。也许存在更好的解决方案？function writeLog(operationIdentifier, prevResult, operationNumber, newResult) {const logEntry = {    operation: operationIdentifier,    prevResult: prevResult,    number: operationNumber,    result: newResult,};logEntries.push(logEntry);console.log(logEntries);由此：function add() {    const enteredNumber = getUserNumberInput();    const initialResult = currentResult;    currentResult += enteredNumber;    createAndWriteOutput('+', initialResult, enteredNumber);    writeLog('ADD', initialResult, enteredNumber, currentResult);}

Answer 1

您可以尝试使用代理进行日志记录

const increment = a => a + 1;

const proxy = new Proxy(increment, {

  apply(target, thisArg, args) {

    console.log(`Incrementing the value "${args[0]}"`);

    const result = target(...args);

    console.log(`Result: "${result}"`);

    return result;

  },

});

increment(5); 

/* nothing logs here */

proxy(5);

/* Incrementing the value "5".

Result: "6" */