npm install itheima-tools-lulu
const itheima=require('itheima-tools-lulu')
const dtstr=itheima.dataFormat(new Date()) console.log(dtstr)
const htmlStr='
' const str=itheima.htmlEscape(htmlStr)console.log(str)
const str2=itheima.htmlUnEscape(str) console.log(str2)
ISC