console.log作为if语句中的条件

Question

为什么if语句在底部计算上不正确？

是否可能不能使用console.log作为if语句中的条件以及数字？

// This is what a function looks like: 

var divideByThree = function (number) { 
    var val = number/3; 
    console.log(val); 
}; 

// On line 12, we call the function by name 
// Here, it is called 'dividebythree' 
// We tell the computer what the number input is (i.e. 6) 
// The computer then runs the code inside the function! 
divideByThree(6); 

if (divideByThree(6) === 2) 
{console.log("I'm right")} 
else 
{console.log("I'm stupid")} 

这肯定工程

var divideByThree = 2; 

if (divideByThree === 2) 
{console.log("I'm right no.2")} 
else 
{console.log("I'm stupid no.2")} 

Answer 1

不必返回divideByThree的结果，所以它会retrun不确定这是不是等于2

编辑 添加返回功能

var divideByThree = function (number) { 
    var val = number/3; 
    console.log(val); 
    return val; 
};