Question

The following lines of code should test 2 strings for equality. Can you spot a bug? If so, please explain it.
var isEqual = string1.Length == string2.Length;

if (isEqual)
for (var i = 0; i < string1.Length; i++)
isEqual = string1[i] == string2[i];

Console.WriteLine(isEqual);

Answer 1

In the for loop you should have isEqual = isEqual && string1[i] == string2[i];
Else it wouldn't matter, if the strings are of equal size and the last characters match, the strings are "equal" for this algorithm regardless of the rest of the characters