* fix: move "Explore Differences Between..." to basic JS, update seed and tests * fix: resequence "Declare String Variables" * fix: move "Declare a Read-Only Variable..." to basic JS, update seed and tests * fix: revert changes to non-English "Explore Differences Between..." test text * fix: revert test strings, solutions, and seeds for non-English challenges * fix: update "Declare String Variables" description * fix: sync quotation marks in description and seed * fix: modify note in "Declare a Read-Only..." challenge * fix: update operator and compound assignment challenges * fix: update string challenges * fix: update array and array method challenges * fix: update function and scope challenges, resequence slightly * fix: "Word Blanks" solution * fix: add spacing to seed * fix: concatenating += challenge spacing * fix: appending variables to strings spacing * fix: find the length of a string spacing * fix: removed instances of removedFromMyArray = 0 * fix: switch challenges * fix: function argument and param spacing * fix: update counting cards, object challenges, and record collection * fix: finish rest of Basic JS section * fix: introducing else statements solution * fix: update spacing and wording * fix: update wording for const challenge * fix: update functional programming challenges * fix: intermediate algorithms and cert challenges * fix: revert some spacing and remove comments for fp challenge solutions * feat: add notes with links to moved let and const challenges in first two es6 challenges * fix: update es6 intro text * Update curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/concatenating-strings-with-the-plus-equals-operator.md Co-authored-by: Shaun Hamilton <shauhami020@gmail.com> * Update curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/finding-a-remainder-in-javascript.md Co-authored-by: Shaun Hamilton <shauhami020@gmail.com> * Update curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/global-scope-and-functions.md Co-authored-by: Shaun Hamilton <shauhami020@gmail.com> * Update curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/iterate-through-an-array-with-a-for-loop.md Co-authored-by: Shaun Hamilton <shauhami020@gmail.com> * Update curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/iterate-through-an-array-with-a-for-loop.md Co-authored-by: Shaun Hamilton <shauhami020@gmail.com> * Update curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming/implement-map-on-a-prototype.md Co-authored-by: Shaun Hamilton <shauhami020@gmail.com> * Update curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/declare-a-read-only-variable-with-the-const-keyword.md Co-authored-by: Shaun Hamilton <shauhami020@gmail.com> * fix: concatenating strings with plus operator seed * fix: add comments back to Declare a Read-Only Variable... seed * feat: add es6 to basic javascript redirect tests for let and const challenges * fix: revert "Concatenating Strings with Plus Operator" seed * fix: move test file to cypress/integration/learn/redirects, separate redirect tests Co-authored-by: Shaun Hamilton <shauhami020@gmail.com>
69 lines
1.5 KiB
Markdown
69 lines
1.5 KiB
Markdown
---
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id: bd7123c9c452eddfaeb5bdef
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title: Use Bracket Notation to Find the Nth-to-Last Character in a String
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challengeType: 1
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videoUrl: 'https://scrimba.com/c/cw4vkh9'
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forumTopicId: 18344
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dashedName: use-bracket-notation-to-find-the-nth-to-last-character-in-a-string
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---
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# --description--
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You can use the same principle we just used to retrieve the last character in a string to retrieve the Nth-to-last character.
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For example, you can get the value of the third-to-last letter of the `const firstName = "Augusta"` string by using `firstName[firstName.length - 3]`
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Example:
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```js
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const firstName = "Augusta";
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const thirdToLastLetter = firstName[firstName.length - 3];
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```
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`thirdToLastLetter` would have a value of the string `s`.
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# --instructions--
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Use <dfn>bracket notation</dfn> to find the second-to-last character in the `lastName` string.
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**Hint:** Try looking at the example above if you get stuck.
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# --hints--
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`secondToLastLetterOfLastName` should be the letter `c`.
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```js
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assert(secondToLastLetterOfLastName === 'c');
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```
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You should use `.length` to get the second last letter.
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```js
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assert(code.match(/\.length/g).length > 0);
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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;})(secondToLastLetterOfLastName);
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```
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## --seed-contents--
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```js
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// Setup
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const lastName = "Lovelace";
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// Only change code below this line
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const secondToLastLetterOfLastName = lastName; // Change this line
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```
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# --solutions--
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```js
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const lastName = "Lovelace";
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const secondToLastLetterOfLastName = lastName[lastName.length - 2];
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```
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