为什么我将 for 循环代码转换为 while 循环代码失败了？

Question

In the process of playing with getting all the odd numbers from 30 to 40 in a javascript's while-loop, I have encountered the problem of not being able to equally transform my for-loop code, which solves this task, into its while-loop counterpart. My while-loop gives out an extra '41'. Was my transformation wrong or while-loop is essentially different from the for-loop in JavaScript?

const max = 40;
const min = 30;
for (let i = min + 1; i < max; i += 2) {
  console.log(i);
}
// 31 33 35 37 39


const max = 40;
const min = 30;
let i = min + 1;
while (i < max) {
  console.log(i);
  i += 2;
}
// 31 33 35 37 39 41

Yet, if we write down 'console.log('end')' beneath the above while-loop, it will be working correctly. How to explain this? Is it a bug in the system?

Answer 1

I tried logging some more output at the end of while loop and it returns me the expected output but with that extra logged statement.

var  min = 30, max = 40;
var i = min + 1;
while(i < max){
console.log(i);
i = i + 2;
}
console.log('end');

//31 33 35 37 39 end