chore: import upstream snapshot with attribution

curriculum/challenges/english/blocks/basic-javascript/bd7123c9c451eddfaeb5bdef.md

@@ -0,0 +1,61 @@
+---
+id: bd7123c9c451eddfaeb5bdef
+title: Use Bracket Notation to Find the Last Character in a String
+challengeType: 1
+forumTopicId: 18342
+dashedName: use-bracket-notation-to-find-the-last-character-in-a-string
+---
+
+# --description--
+
+In order to get the last letter of a string, you can subtract one from the string's length.
+
+For example, if `const firstName = "Ada"`, you can get the value of the last letter of the string by using `firstName[firstName.length - 1]`.
+
+Example:
+
+```js
+const firstName = "Ada";
+const lastLetter = firstName[firstName.length - 1];
+```
+
+`lastLetter` would have a value of the string `a`.
+
+# --instructions--
+
+Use <dfn>bracket notation</dfn> to find the last character in the `lastName` variable.
+
+**Hint:** Try looking at the example above if you get stuck.
+
+# --hints--
+
+`lastLetterOfLastName` should be the letter `e`.
+
+```js
+assert(lastLetterOfLastName === 'e');
+```
+
+You should use `.length` to get the last letter.
+
+```js
+assert(__helpers.removeJSComments(code).match(/\.length/g).length > 0);
+```
+
+# --seed--
+
+## --seed-contents--
+
+```js
+// Setup
+const lastName = "Lovelace";
+
+// Only change code below this line
+const lastLetterOfLastName = lastName; // Change this line
+```
+
+# --solutions--
+
+```js
+const lastName = "Lovelace";
+const lastLetterOfLastName = lastName[lastName.length - 1];
+```