console.log(typeof 1)
console.log(typeof '1')
console.log(typeof true)
console.log(typeof undefined)
console.log(typeof null) VM142:1 numberVM142:3 stringVM142:5 booleanVM142:7 undefinedVM142:9 object
console.log(typeof [1])
console.log(typeof (new Date()))
console.log(typeof /\d+/)
console.log(typeof (function(){}))VM144:1 objectVM144:3 objectVM144:5 objectVM144:7 function
转载于:https://www.cnblogs.com/taojunlong/p/6833297.html
