freeCodeCamp/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/use-bracket-notation-to-find-the-last-character-in-a-string.md
Oliver Eyton-Williams ee1e8abd87
feat(curriculum): restore seed + solution to Chinese (#40683)
* feat(tools): add seed/solution restore script

* chore(curriculum): remove empty sections' markers

* chore(curriculum): add seed + solution to Chinese

* chore: remove old formatter

* fix: update getChallenges

parse translated challenges separately, without reference to the source

* chore(curriculum): add dashedName to English

* chore(curriculum): add dashedName to Chinese

* refactor: remove unused challenge property 'name'

* fix: relax dashedName requirement

* fix: stray tag

Remove stray `pre` tag from challenge file.

Signed-off-by: nhcarrigan <nhcarrigan@gmail.com>

Co-authored-by: nhcarrigan <nhcarrigan@gmail.com>
2021-01-12 19:31:00 -07:00

67 lines
1.3 KiB
Markdown

---
id: bd7123c9c451eddfaeb5bdef
title: Use Bracket Notation to Find the Last Character in a String
challengeType: 1
videoUrl: 'https://scrimba.com/c/cBZQGcv'
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 `var firstName = "Charles"`, you can get the value of the last letter of the string by using `firstName[firstName.length - 1]`.
Example:
```js
var firstName = "Charles";
var lastLetter = firstName[firstName.length - 1]; // lastLetter is "s"
```
# --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 "e".
```js
assert(lastLetterOfLastName === 'e');
```
You should use `.length` to get the last letter.
```js
assert(code.match(/\.length/g).length > 0);
```
# --seed--
## --after-user-code--
```js
(function(v){return v;})(lastLetterOfLastName);
```
## --seed-contents--
```js
// Setup
var lastName = "Lovelace";
// Only change code below this line
var lastLetterOfLastName = lastName; // Change this line
```
# --solutions--
```js
var lastName = "Lovelace";
var lastLetterOfLastName = lastName[lastName.length - 1];
```