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扩展运算符的使用途径 1、在解构赋值中使用 let [a,b]=[1,2] console.log(a,b) // a=1 b=2 let [c,d]=[1,2,3,4] console.log(c,d) // 按需解构c=1 d=2 let [e,...f]=[1,2,3,4,5,6] console.log(e,f) //e=1 f=[ 2, 3, 4, 5, 6 ] 2、用作剩余形参,就不必使用函数内置的argument伪数组 function getMax(...item: number[])

错误展示 Cannot find name 'console'. Do you need to change your target library?ging the 'lib' compiler option to include 'dom'. 2 console.log("当我唱起这首歌"); ~~~~~~~ at createTSError (D:\Software\node-v14.8.0-win-x64\node-global\node_modules\ts-node\sr