岳麓听雨专栏

var object1 = {value: 10}; var object2 = object1; var object3 = {value: 10}; alert(object1 == object2); alert(object1 == object3);

var chineseBox = {}; chineseBox.content = chineseBox; show("content" in chineseBox); show("content" in chineseBox.content);var propertyName

1 var fs = require('fs') 2 fs.readFile('hello.js','utf-8',function(err,data){ 3 if(err){ 4 console.error(err) 5 }else{ 6 console.log(data) 7 } 8 })；node debug