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>
84 lines
2.2 KiB
Markdown
84 lines
2.2 KiB
Markdown
---
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id: 587d7db4367417b2b2512b90
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title: Match a Literal String with Different Possibilities
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challengeType: 1
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forumTopicId: 301345
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dashedName: match-a-literal-string-with-different-possibilities
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---
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# --description--
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Using regexes like `/coding/`, you can look for the pattern `"coding"` in another string.
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This is powerful to search single strings, but it's limited to only one pattern. You can search for multiple patterns using the `alternation` or `OR` operator: `|`.
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This operator matches patterns either before or after it. For example, if you wanted to match `"yes"` or `"no"`, the regex you want is `/yes|no/`.
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You can also search for more than just two patterns. You can do this by adding more patterns with more `OR` operators separating them, like `/yes|no|maybe/`.
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# --instructions--
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Complete the regex `petRegex` to match the pets `"dog"`, `"cat"`, `"bird"`, or `"fish"`.
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# --hints--
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Your regex `petRegex` should return `true` for the string `"John has a pet dog."`
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```js
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assert(petRegex.test('John has a pet dog.'));
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```
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Your regex `petRegex` should return `false` for the string `"Emma has a pet rock."`
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```js
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assert(!petRegex.test('Emma has a pet rock.'));
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```
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Your regex `petRegex` should return `true` for the string `"Emma has a pet bird."`
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```js
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assert(petRegex.test('Emma has a pet bird.'));
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```
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Your regex `petRegex` should return `true` for the string `"Liz has a pet cat."`
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```js
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assert(petRegex.test('Liz has a pet cat.'));
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```
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Your regex `petRegex` should return `false` for the string `"Kara has a pet dolphin."`
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```js
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assert(!petRegex.test('Kara has a pet dolphin.'));
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```
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Your regex `petRegex` should return `true` for the string `"Alice has a pet fish."`
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```js
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assert(petRegex.test('Alice has a pet fish.'));
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```
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Your regex `petRegex` should return `false` for the string `"Jimmy has a pet computer."`
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```js
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assert(!petRegex.test('Jimmy has a pet computer.'));
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```
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# --seed--
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## --seed-contents--
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```js
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let petString = "James has a pet cat.";
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let petRegex = /change/; // Change this line
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let result = petRegex.test(petString);
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```
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# --solutions--
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```js
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let petString = "James has a pet cat.";
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let petRegex = /dog|cat|bird|fish/; // Change this line
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let result = petRegex.test(petString);
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```
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