我不明白这段代码有什么问题

Question

我的代码被使用了，因此它根据您想要生成的数量来生成随机的稀缺性，但是我仍然得到语法错误：

未定义

i

使用此代码：

var rarities = [
    'Common',
    'Uncommon',
    'Rare',
    'Epic',
    'Legendary',
    'Exotic',
    'Mythic'
]

let rarity = rarities[Math.floor(Math.random() * rarities.length)

function generateRarity(length, times){
    let numbers = [];
    for(i=0; i < times; i++){
        let number = Math.floor(Math.random() * length)
        numbers.push(number)
    }
    return numbers;
}

let indexArray = generateRarity(rarities.length, args) 
let generatedRarities = [];
indexArray.forEach(index => generatedRarities.push(rarities[index]))

sentrarities = "#".join(generatedRarities)

await message.reply(sentrarities)

Answer 1

您得到这个错误仅仅是因为一个错误。当您声明let rarities时，在它的末尾缺少一个]。然后，JS尝试将函数包含在其中，但随后发现它不能，因此出现了错误。您所要做的就是将代码更改为：

var rarities = [
  'Common',
  'Uncommon',
  'Rare',
  'Epic',
  'Legendary',
  'Exotic',
  'Mythic'
]
let rarity = rarities[Math.floor(Math.random() * rarities.length)]

function generateRarity(length, times) {
  let numbers = [];
  for (i = 0; i < times; i++) {
    let number = Math.floor(Math.random() * length)
    numbers.push(number)
  }
  return numbers;
}

let indexArray = generateRarity(rarities.length, args)
let generatedRarities = [];
indexArray.forEach(index => generatedRarities.push(rarities[index]))

sentrarities = "#".join(generatedRarities)

await message.reply(sentrarities)