Console.In.Peek

Question

Can someone explain this part code in this code please:
while (Console.In.Peek() != -1)
{
Console.Read();
}
break;
https://code.sololearn.com/cmw5Zx2j7SB5/?ref=app

Answer 1

(Console.In.Peek() != -1) checks for the presence of any character in the input console, if there are no characters, then the result will be -1.
But as far as I understand this cycle is inappropriate here.
I'm not good with c#, but I would fix it.

Answer 2

Okay, now the last Console.Read() is not needed either, reading the input happens in the loop condition.☺️

Answer 3

Solo 👍 thanks

Answer 4

Okay, now let's go back to the Peek() method to avoid the infinite loop: 😎
while(Console.In.Peek()!=-1){
ch = (char)Console.Read();
switch(ch){
...

Now you can enter any number of numbers, or enter nothing. 😉