所以我目前正在从 codecademy.com 学习 javascript ，我在尝试解决有关控制流的代码时遇到了问题

Question

所以，我目前正在学习控制流，我必须构建一个带有 else if 条件的程序。问题是我不断收到 else ifs 的错误："Expected an identifier and saw else" 和 "Expected an assigment or function call and instead saw an expression"。这是代码：

var moonPhase = 'full';

if (moonPhase === 'full') {
  console.log(Howwwlll!');}
      else if (moonPhase === 'mostly full'); {
        console.log('Arms and legs are getting hairier.');
      } else if (moonPhase === 'mostly new'); {
        console.log('Back on two feet');
      } else {
        console.log(Caution, unknown ');}

//我做错了什么？提前致谢！

Answer 1

删除 if 和 else 条件中的 ;。而且 console.log() 有一个语法错误，你缺少开始 ' 单引号

var moonPhase = 'full';

if (moonPhase === 'full') {
  console.log('Howwwlll!');
} else if (moonPhase === 'mostly full'){
  console.log('Arms and legs are getting hairier.');
} else if (moonPhase === 'mostly new'){
  console.log('Back on two feet');
} else {
  console.log('Caution, unknown');
}

所以我目前正在从 codecademy.com 学习 javascript ，我在尝试解决有关控制流的代码时遇到了问题

So i'm currently learning javascript from codecademy.com , i have got a issue trying to solve a code about control flow

javascript

control-flow