用户选择要显示的提示框数量

Question

尝试编写一个 javascript 的代码，这将使用户能够获得 select 的提示框数量。

比如，提示框会说，你要多少提示。 然后如果用户输入 2。将显示两个提示框，如果用户输入 3 或 4。将显示该数量的提示框。

    let num = Number(prompt('Enter the number of prompts:'));

if (num=1){
  let name1 = prompt('Enter first user name:');
  let age1 = prompt('Enter first user age');
  
  
  console.log(name1)
  console.log(age1);
}
  
else if (num=2){
  let name1 = prompt('Enter first user name:');
  let age1 = prompt('Enter first user age');
  
  let name2 = prompt('Enter second user name:');
  let age2 = prompt('Enter second user age');
  
  console.log(name1);
  console.log(age1);
  
  console.log(name2)
  console.log(age2);
}
else{
  let name1 = prompt('Enter first user name:');
  let age1 = prompt('Enter first user age');
  
  let name2 = prompt('Enter second user name:');
  let age2 = prompt('Enter second user age');
  
  let name3 = prompt('Enter third user name:');
  let age3 = prompt('Enter third user age');
  
  
  console.log(name1)
  console.log(age1);
  
  console.log(name2)
  console.log(age2);
  
  console.log(name3)
  console.log(age3);
  
}

Answer 1

我只会使用 for 循环。

let num = Number(prompt('Enter the number of prompts:'));

const data = [];

for (let i = 0; i < num; i++) {
  let name = prompt(`Enter user ${i}'s name:`);
  let age = prompt(`Enter user ${i}'s age:`);

  data.push({ name, age });
}

data.forEach(d => {
  console.log(d.name);
  console.log(d.age);
});

通过改写提示来简化它，以便您可以在循环中使用当前 position 的索引。

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