* 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>
1.4 KiB
1.4 KiB
id, title, challengeType, videoUrl, forumTopicId, dashedName
id | title | challengeType | videoUrl | forumTopicId | dashedName |
---|---|---|---|---|---|
bd7123c9c450eddfaeb5bdef | Use Bracket Notation to Find the Nth Character in a String | 1 | https://scrimba.com/c/cWPVJua | 18343 | use-bracket-notation-to-find-the-nth-character-in-a-string |
--description--
You can also use bracket notation to get the character at other positions within a string.
Remember that computers start counting at 0
, so the first character is actually the zeroth character.
Example:
var firstName = "Ada";
var secondLetterOfFirstName = firstName[1]; // secondLetterOfFirstName is "d"
--instructions--
Let's try to set thirdLetterOfLastName
to equal the third letter of the lastName
variable using bracket notation.
Hint: Try looking at the example above if you get stuck.
--hints--
The thirdLetterOfLastName
variable should have the value of v
.
assert(thirdLetterOfLastName === 'v');
You should use bracket notation.
assert(code.match(/thirdLetterOfLastName\s*?=\s*?lastName\[.*?\]/));
--seed--
--after-user-code--
(function(v){return v;})(thirdLetterOfLastName);
--seed-contents--
// Setup
var lastName = "Lovelace";
// Only change code below this line
var thirdLetterOfLastName = lastName; // Change this line
--solutions--
var lastName = "Lovelace";
var thirdLetterOfLastName = lastName[2];