Question

我想使用modified version of this solution来将控制台日志记录包装到新功能中：

 var user = {
        username,
        password,
        confirm,
    };

    function check(a) {

            if (user.username != "") {
                return true
            }
            if (6 < user.password < 30) {
                return true
            }
            if (user.password = user.confirm) {
                return true
            } else {
                document.write("wrong");
                return false
            }

        console.log(user = {
            username = "adc",
            password = "sadcddddddcdcdcdcdcdcdcđcdcdcdcdcdc",
            confirm = "sadcddddddcdcdcdcdcdcdcđcdcdcdcdcdc",
        };);
    }

但是，我希望不创建function Logger(force) { const logging = {}; if (force) { for (let m in console) { if (typeof console[m] == 'function') { logging[m] = console[m].bind(console); } } } else { for (let m in console) { if (typeof console[m] == 'function') { logging[m] = function() {}; } } } return logging; } debugOff = new Logger(false); debugOff.log("this WILL NOT log"); debugOn = new Logger(true); debugOn.log("This WILL log");的新实例，并将Logger与相关true/false一起传递。我尝试在另一个函数中包装新实例，但我必须使用其中的特定方法：

string

我怎么能重构这个，所以我可以打电话：

function noopLogger (force, string) {

    function Logger(force) {

        const logging = {};

        if (force) {
            for (let m in console) {
                if (typeof console[m] == 'function') {
                    logging[m] = console[m].bind(console);
                }
            }
        } else {
            for (let m in console) {
                if (typeof console[m] == 'function') {
                    logging[m] = function() {};
                }
            }
        }

        return logging;
    }

    instance = new Logger(force);
    return instance.log(string); // don't want to do this here
}

noopLogger(true, "this will log"); // this logs, but I only have access to log, not warn, error, etc.

Answer 1

我认为这符合您的要求。如果您正在寻找更多或其他内容，请告诉我。

function getLogger() {
  const logger = {};

  for (let m in console) {
    if (typeof console[m] == 'function') {
        logger[m] = function (force, string) {
          if (!force) return;
          console[m].call(console, string);
        }
    }
  }
  return logger;

}

const noopLogger = getLogger();
noopLogger.log(true, 'this WILL log'); 
noopLogger.log(false, 'this WILL NOT log');
noopLogger.warn(true, 'this warning WILL log');
noopLogger.warn(false, 'this warning WILL NOT log');

输出：

:> node test.js
this WILL log
this warning WILL log

带有noop的节点控制台包装器

1 个答案: