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I can't figure out why EndsWith is returning false.

I have the C# code:

string heading = "yakobusho";
bool test = (heading == "yakobusho");
bool back = heading.EndsWith("​sho");
bool front = heading.StartsWith("yak");
bool other = "yakobusho".EndsWith("sho");
Debug.WriteLine("heading = " + heading);
Debug.WriteLine("test = " + test.ToString());
Debug.WriteLine("back = " + back.ToString());
Debug.WriteLine("front = " + front.ToString());
Debug.WriteLine("other = " + other.ToString());

The output is:

heading = yakobusho
test = True
back = False
front = True
other = True

What is going on with EndsWith?

The "​sho" string in the third line starts with a zero length space. "​sho".Length returns 4 while ((int)"​sho"[0]) returns 8203, the Unicode value of the zero length space.

You can type it in a string using its hex code, eg :

"x200Bsho"

Annoyingly, that character isn't considered whitespace so it can't be removed with String.Trim().

This contains an invisible character before the "sho" string:

bool back = heading.EndsWith("​sho");

The corrected line:

bool back = heading.EndsWith("sho");

In your EndsWith argument there is a special character.

As you can see from this code:

 class Program
 
 static void Main(string[] args)
 
 string heading = "yakobusho";

 string yourText = "​sho";
 bool back = heading.EndsWith(yourText);

 Debug.WriteLine("back = " + back.ToString());
 Debug.WriteLine("yourText length = " + yourText.Length);

 string newText = "sho";
 bool backNew = heading.EndsWith(newText);

 Debug.WriteLine("backNew = " + backNew.ToString());
 Debug.WriteLine("newText length = " + newText.Length);

 
 

OUTPUT:

back = False
yourText length = 4
backNew = True
newText length = 3

The length of yourText is 4 and so there is some hidden character in this string.

Hope this helps.