* chore(learn): audit basic algorithm scripting * chore(learn): audit basic data structures * chore(learn): audit basic javascript * chore(learn): audit debugging * chore(learn): audit es6 * chore(learn): audit functional programming * chore(learn): audit intermidate algorithms * chore(learn): audit js projects * chore(learn): audit object oriented programming * chore(learn): audit regex * fix(learn): remove stray . * fix(learn): string to code * fix(learn): missed some * fix(learn): clarify strings Based on Randy's feedback, clarifies string instances where quotes were removed in favour of back ticks. * fix: apply suggestions - thanks Randy! :) Co-authored-by: Randell Dawson <5313213+RandellDawson@users.noreply.github.com> * fix: non-suggestion comments * chore(learn): remove comments from codes Removes the comments from the description and instruction code blocks to ensure that all relevant information is translatable. * fix: Apply suggestions from code review Co-authored-by: Shaun Hamilton <51722130+ShaunSHamilton@users.noreply.github.com> * fix: revert crowdin fix * Update curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-algorithm-scripting/mutations.md Co-authored-by: Randell Dawson <5313213+RandellDawson@users.noreply.github.com> * fix: Apply suggestions from code review Co-authored-by: Shaun Hamilton <51722130+ShaunSHamilton@users.noreply.github.com> * Update curriculum/challenges/english/02-javascript-algorithms-and-data-structures/es6/use-destructuring-assignment-to-assign-variables-from-arrays.md Co-authored-by: Shaun Hamilton <51722130+ShaunSHamilton@users.noreply.github.com> * fix: Apply suggestions from code review Co-authored-by: Oliver Eyton-Williams <ojeytonwilliams@gmail.com> Co-authored-by: Shaun Hamilton <51722130+ShaunSHamilton@users.noreply.github.com> * chore: change voice * fix: Christopher Nolan * fix: expressions would evaluate * fix: will -> would * Update curriculum/challenges/english/02-javascript-algorithms-and-data-structures/object-oriented-programming/add-methods-after-inheritance.md Co-authored-by: Randell Dawson <5313213+RandellDawson@users.noreply.github.com> * fix: to work to push * Update curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/iterate-with-javascript-for-loops.md Co-authored-by: Shaun Hamilton <51722130+ShaunSHamilton@users.noreply.github.com> * Update curriculum/challenges/english/02-javascript-algorithms-and-data-structures/object-oriented-programming/add-methods-after-inheritance.md Co-authored-by: Randell Dawson <5313213+RandellDawson@users.noreply.github.com> Co-authored-by: Randell Dawson <5313213+RandellDawson@users.noreply.github.com> Co-authored-by: Shaun Hamilton <51722130+ShaunSHamilton@users.noreply.github.com> Co-authored-by: Oliver Eyton-Williams <ojeytonwilliams@gmail.com>
86 lines
2.0 KiB
Markdown
86 lines
2.0 KiB
Markdown
---
|
|
id: 587d7db8367417b2b2512ba1
|
|
title: Match All Non-Numbers
|
|
challengeType: 1
|
|
forumTopicId: 301347
|
|
dashedName: match-all-non-numbers
|
|
---
|
|
|
|
# --description--
|
|
|
|
The last challenge showed how to search for digits using the shortcut `\d` with a lowercase `d`. You can also search for non-digits using a similar shortcut that uses an uppercase `D` instead.
|
|
|
|
The shortcut to look for non-digit characters is `\D`. This is equal to the character class `[^0-9]`, which looks for a single character that is not a number between zero and nine.
|
|
|
|
# --instructions--
|
|
|
|
Use the shorthand character class for non-digits `\D` to count how many non-digits are in movie titles.
|
|
|
|
# --hints--
|
|
|
|
Your regex should use the shortcut character to match non-digit characters
|
|
|
|
```js
|
|
assert(/\\D/.test(noNumRegex.source));
|
|
```
|
|
|
|
Your regex should use the global flag.
|
|
|
|
```js
|
|
assert(noNumRegex.global);
|
|
```
|
|
|
|
Your regex should find no non-digits in the string `9`.
|
|
|
|
```js
|
|
assert('9'.match(noNumRegex) == null);
|
|
```
|
|
|
|
Your regex should find 6 non-digits in the string `Catch 22`.
|
|
|
|
```js
|
|
assert('Catch 22'.match(noNumRegex).length == 6);
|
|
```
|
|
|
|
Your regex should find 11 non-digits in the string `101 Dalmatians`.
|
|
|
|
```js
|
|
assert('101 Dalmatians'.match(noNumRegex).length == 11);
|
|
```
|
|
|
|
Your regex should find 15 non-digits in the string `One, Two, Three`.
|
|
|
|
```js
|
|
assert('One, Two, Three'.match(noNumRegex).length == 15);
|
|
```
|
|
|
|
Your regex should find 12 non-digits in the string `21 Jump Street`.
|
|
|
|
```js
|
|
assert('21 Jump Street'.match(noNumRegex).length == 12);
|
|
```
|
|
|
|
Your regex should find 17 non-digits in the string `2001: A Space Odyssey`.
|
|
|
|
```js
|
|
assert('2001: A Space Odyssey'.match(noNumRegex).length == 17);
|
|
```
|
|
|
|
# --seed--
|
|
|
|
## --seed-contents--
|
|
|
|
```js
|
|
let movieName = "2001: A Space Odyssey";
|
|
let noNumRegex = /change/; // Change this line
|
|
let result = movieName.match(noNumRegex).length;
|
|
```
|
|
|
|
# --solutions--
|
|
|
|
```js
|
|
let movieName = "2001: A Space Odyssey";
|
|
let noNumRegex = /\D/g; // Change this line
|
|
let result = movieName.match(noNumRegex).length;
|
|
```
|