last letter in a string

I have a string that is going to keep updating

Say x='ear' how do I take the last later in the string so say lastletter='r' is it possible to have this work generally to always take the last later in a the string so say x gets updated to 'eart' lastletter=-t'

Answer 1

[Thorsten]

 x = 'ear';
 lastletter = x(end);

[ABDALHADI ABU ZEYNEH]

if x=dbacdcbad,how can i pick all the a's and c's so that the answer is ''acca''?

thank you in advance

[Justin]

AllA = x(x == "a")

I have not tested this, just a belief this works

[Walter Roberson]

No that would not work. When you use == to compare a character vector to a string scalar, the character vector gets converted to a string scalar and then the == would be comparing for string equality not character equality.

On the other hand

x(x == 'a')

would pull out all of letter 'a'