编辑代码

//程序运行完成时一定要有输出语句，本工具才能正确展示运行结果。 
console.log("Hello JSRUN!   \n\n         - from NodeJS .");


a = Number(123)
objectName = Object.prototype.toString(a)
console.log(objectName)
objectName = objectName.replace(/^\[object (.*)\]$/, '$1')
console.log( objectName )

console.log('==================================')

a = Array()
objectName = Object.prototype.toString(a)
console.log(objectName)
objectName = objectName.replace(/^\[object (.*)\]$/, '$1')
console.log( objectName )