Dra*_*ght 4 javascript string binary bit-manipulation bitwise-operators
在 Javascript 中,要将字符串转换为数字,我们可以这样做:
var str = "1" // "1" as string 
var num = +str  //  1  as number 
我可以使用哪个运算符反向执行相同的操作number.toString()?即将数字转换为字符串
var num = 1             //  1  as a number 
var str = (operator)num // "1" as a string