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et-util-logger

v1.1.0

Published

utillities for print colorful information in terminal

Downloads

84

Readme

Engineering-Util-Logger

简介

在控制台打印彩色信息。是 color模块 的一个简版, 提炼几个常用行为用于统一输出。另外,定制了工程化工具的logo。关于控制台颜色输出,更多 看这里

安装

npm install -g et-util-logger

使用

日志的输出分为6个等级,通过Level来表示。见下表

| 枚举参数| 值 | 描述 | 对应方法 | | :--------- |:----------|--------------|:------------| | Level.ALL | 0 | 打印所有日志 | any | | Level.FINE | 300 | 轨迹信息最详细 | logger.fine | | Level.INFO | 600 | 流程中的提示信息,应引起注意 | logger.info | | Level.WARNING | 900 | 警告,但程序仍可以继续 | logger.warn | | Level.ERROR | 1200 | 严重级别错误 | logger.error | | Level.OFF | Infinity | 不开启log | none |

调用代码如下

var log = require("et-util-logger");

// 初始化Logger实例的时候传入默认的日志级别,不传默认是all
var logger = new log.Logger(log.Level.ALL);

// 代码中调用,输出警告信息,因为此时的level是all,意味着打印所有信息
logger.warn("Invalid property named " + prop);
// 此时控制台输出:[Warning] Invalid property named unknown

// 可以动态修改logger的输出级别,此处修改为error
logger.setLevel(log.Level.ERROR);

// 代码中调用,输出警告信息,但此时的level是error,意味着只会输出严重错误信息
// 所以调用warn方法不会打印任何信息
logger.warn("Invalid property named " + prop);
// 此时控制台输出: