重新分配不会改变 java 脚本中 const 的值吗？

Question

Please clarify this silly doubt:

for (let count = 0; count < 3 && count < players.length; count++) { 
  const num = count + 1  
  const player = players[count] 
  console.log(`${num}. ${player}`) 
}

Here const num= count+1; isnot new value (primitive)being assigned to count in each iteration. or const num is allowed as it ll create new variable with same name discarding old var const num=0; num=count+1 will be invalid i understand but can some one explain above doubt.

Answer 1

In this case you create new const num in each iteration, that is mean you are not changing existed variable. There is could other case when you have const num before the loop, then you can't change it in the loop, so you should use let. It's better use const for primitive values.