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Javascript 当我运行这段代码时,它告诉我animalIindex没有定义?_Javascript_Loops - Fatal编程技术网

Javascript 当我运行这段代码时,它告诉我animalIindex没有定义?

Javascript 当我运行这段代码时,它告诉我animalIindex没有定义?,javascript,loops,Javascript,Loops,当我运行此代码时,它告诉我animalindex未定义 let animal = ['lion', 'snail', 'snake', 'tiger', 'sheep', 'frog', 'cheetah', 'leopard']; for (let animalIndex = 0; animalIndex < animal.length; animalIndex++); { console.log(animal[animalIndex]); }; let animal=[‘狮子

当我运行此代码时,它告诉我
animalindex
未定义

let animal = ['lion', 'snail', 'snake', 'tiger', 'sheep', 'frog', 'cheetah', 'leopard'];
for (let animalIndex = 0; animalIndex < animal.length; animalIndex++); {
    console.log(animal[animalIndex]);
};
let animal=[‘狮子’、‘蜗牛’、‘蛇’、‘老虎’、‘羊’、‘青蛙’、‘猎豹’、‘豹’];
对于(让animalIndex=0;animalIndex
用于(让animalIndex=0;animalIndex
如果在末尾删除分号,那么它将起作用,分号表示语句已完成,但直到for循环结束后才完成


关闭for循环,使动物[animalIndex]中的animalIndex未定义。

还有一些额外的
哦,非常感谢,代码已经被重构了。不相关:“重构”和“修复”是两个不同的概念。
for (let animalIndex = 0; animalIndex < animal.length; animalIndex++);