将 for 循环转换为大写

Question

无法将此 for 循环转换为大写，请帮助：

for (let i=0; i<=people.length-1; i+=1){
  console.log(people[i])
}

Answer 1

假设您的输入数组为字符串“Hello” 您可以使用 toUpperCase() 方法将其转换为大写。 阅读更多详情here

  const people = "Hello";
  for (let i=0; i<=people.length-1; i+=1){
    console.log(people[i].toUpperCase())
  }

或者您可以将整个字符串转换为大写而无需循环，如下所示

const sentence = 'The quick brown fox jumps over the lazy dog.';

console.log(sentence.toUpperCase());