ee1e8abd87
* 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>
67 lines
1.4 KiB
Markdown
67 lines
1.4 KiB
Markdown
---
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id: bd7123c9c450eddfaeb5bdef
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title: Use Bracket Notation to Find the Nth Character in a String
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challengeType: 1
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videoUrl: 'https://scrimba.com/c/cWPVJua'
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forumTopicId: 18343
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dashedName: use-bracket-notation-to-find-the-nth-character-in-a-string
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---
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# --description--
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You can also use <dfn>bracket notation</dfn> to get the character at other positions within a string.
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Remember that computers start counting at `0`, so the first character is actually the zeroth character.
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Example:
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```js
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var firstName = "Ada";
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var secondLetterOfFirstName = firstName[1]; // secondLetterOfFirstName is "d"
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```
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# --instructions--
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Let's try to set `thirdLetterOfLastName` to equal the third letter of the `lastName` variable using bracket notation.
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**Hint:** Try looking at the example above if you get stuck.
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# --hints--
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The `thirdLetterOfLastName` variable should have the value of `v`.
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```js
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assert(thirdLetterOfLastName === 'v');
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```
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You should use bracket notation.
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```js
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assert(code.match(/thirdLetterOfLastName\s*?=\s*?lastName\[.*?\]/));
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```
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# --seed--
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## --after-user-code--
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```js
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(function(v){return v;})(thirdLetterOfLastName);
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```
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## --seed-contents--
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```js
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// Setup
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var lastName = "Lovelace";
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// Only change code below this line
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var thirdLetterOfLastName = lastName; // Change this line
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```
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# --solutions--
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```js
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var lastName = "Lovelace";
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var thirdLetterOfLastName = lastName[2];
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```
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