布尔Javascript

Question

Javascript初学者在这里，我一直对这个问题得到错误答案：

“首先，弄清楚我们现在是否有足够的切片。使用比较运算符来确定是否有足够的。将结果分配给enoughSlicesNow变量。”

//变量低于//

var cakes = 5;
var slicesPerCake = 6;
var attendees = 60;
var bakers = 3;
var cakeBakingTime = 1;
var hoursLeftUntilParty = 5;

这是我尝试的但不接受：

(cakes * slicesPerCake)>= attendees 

var enoughSlicesNow = false 

Answer 1

看起来你需要：

array_column()

Answer 2

您可以使用三元运算符

执行此操作

var cakes = 5;
var slicesPerCake = 6;
var attendees = 60;
var bakers = 3;
var cakeBakingTime = 1;
var hoursLeftUntilParty = 5;


 var enoughSlicesNow = (cakes * slicesPerCake) >= attendees ?true:false
alert(enoughSlicesNow)

DEMO

Answer 3

你想这样吗......

＆＃13;

＆＃13;

    var cakes = 5;
    var slicesPerCake = 6;
    var attendees = 60;
    var bakers = 3;
    var cakeBakingTime = 1;
    var hoursLeftUntilParty = 5;
    
    
     var enoughSlicesNow = (cakes * slicesPerCake)>= attendees;
     if(enoughSlicesNow ==true){
         alert('Enough');
       }
    else
    {
      alert('Not enough');
    }

＆＃13;

＆＃13;

＆＃13;