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98 lines
2.2 KiB
Markdown
98 lines
2.2 KiB
Markdown
---
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id: 68ffb91507a5b645769328c5
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title: "Challenge 102: Longest Word"
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challengeType: 29
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dashedName: challenge-102
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---
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# --description--
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Given a sentence string, return the longest word in the sentence.
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- Words are separated by a single space.
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- Only letters (`a-z`, case-insensitive) count toward the word's length.
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- If there are multiple words with the same length, return the first one that appears.
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- Return the word as it appears in the given string, with punctuation removed.
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# --hints--
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`longest_word("The quick red fox")` should return `"quick"`.
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```js
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({test: () => { runPython(`
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from unittest import TestCase
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TestCase().assertEqual(longest_word("The quick red fox"), "quick")`)
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}})
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```
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`longest_word("Hello coding challenge.")` should return `"challenge"`.
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```js
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({test: () => { runPython(`
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from unittest import TestCase
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TestCase().assertEqual(longest_word("Hello coding challenge."), "challenge")`)
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}})
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```
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`longest_word("Do Try This At Home.")` should return `"This"`.
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```js
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({test: () => { runPython(`
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from unittest import TestCase
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TestCase().assertEqual(longest_word("Do Try This At Home."), "This")`)
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}})
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```
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`longest_word("This sentence... has commas, ellipses, and an exclamation point!")` should return `"exclamation"`.
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```js
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({test: () => { runPython(`
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from unittest import TestCase
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TestCase().assertEqual(longest_word("This sentence... has commas, ellipses, and an exclamation point!"), "exclamation")`)
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}})
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```
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`longest_word("A tie? No way!")` should return `"tie"`.
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```js
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({test: () => { runPython(`
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from unittest import TestCase
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TestCase().assertEqual(longest_word("A tie? No way!"), "tie")`)
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}})
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```
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`longest_word("Wouldn't you like to know.")` should return `"Wouldnt"`.
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```js
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({test: () => { runPython(`
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from unittest import TestCase
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TestCase().assertEqual(longest_word("Wouldn't you like to know."), "Wouldnt")`)
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}})
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```
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# --seed--
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## --seed-contents--
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```py
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def longest_word(sentence):
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return sentence
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```
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# --solutions--
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```py
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import re
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def longest_word(sentence):
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words = sentence.split(" ")
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longest = ""
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for word in words:
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cleaned = re.sub(r'[^a-zA-Z]', '', word)
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if len(cleaned) > len(longest):
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longest = cleaned
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return longest
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```
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