Update codeit.js

Author: benhatsor

lib/codeit.js

@@ -1284,13 +1284,13 @@ class CodeitElement extends HTMLElement {
 
       // if start pos is bigger than codeit length,
       // set start pos to codeit length
-      if (startPos > (cd.textContent.length-1)) startPos = cd.textContent.length-1;
+      if (startPos > cd.textContent.length) startPos = cd.textContent.length-1;
 
       if (endPos) {
 
         // if end pos is bigger than codeit length,
         // set end pos to codeit length
-        if (endPos > (cd.textContent.length-1)) endPos = cd.textContent.length-1;
+        if (endPos > cd.textContent.length) endPos = cd.textContent.length-1;
 
         // get caret node and offset
         c = getCaretNode(startPos, endPos);