SeekU

var util = require("util");

var format = util.format("%d",1)

%d : 실수, %s : string, %j : json

function Parent(){

}

function Child(){

}

util.inherits(Child, Parent);

var fs = require("fs");

var output = fs.createWriteStream("stdout.log");

var errorOutput = fs.createWriteStream("error.log");

var Console = require("console").Console;

var logger = new Console(output, errorOutput);

logger.info("info messge");

logger.log("log messge");

logger.warn("warning");

logger.error("error messge");

console.time("sum");

...

console.timeEnd("sum");

var obj = {

name = "홍길동"

}

console.log("obj : " , obj);