javascript - switch 语句中的大于和小于

Question

这个问题已经有答案了:

use relational operators in switch (8 个回答)

已关闭 5 年前。

我试图找出为什么这段代码不起作用

let userName = 'roy';
const userQuestion = 'Do you do CrossFit?';
userName ? console.log('Hello ' + userName + ' !') : console.log('Hello!');
console.log(`The user asked: ${userQuestion}`);
let randomNumber = Math.floor(Math.random() * 8);
let eightBall = '';
console.log(randomNumber);

switch (randomNumber) {
    case 0:
        eightBall = 'It is certain';
        break;
    case 1:
        eightBall = 'It is defidedly so';
        break;
    case randomNumber >= 1:
        eightBall = 'we cant tell';
        break;
}

console.log(` The eight ball answered: ${eightBall}`);

当数字大于 1 时，尝试生成“我们可以判断”，但它没有打印任何内容。我使用 switch 语句是否错误？

Answer 1

使用默认值和内部的 if 语句，如下所示:

let randomNumber = 100
let eightBall = ''

switch (randomNumber) {
    case 0:
        eightBall = 'It is certain';
        break;
    case 1:
        eightBall = 'It is defidedly so';
        break;
    default:
        if(randomNumber >= 1)
            eightBall = 'we cant tell';
        break;
}

console.log(` The eight ball answered: ${eightBall}`);