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Challenge 70: HTML Attribute Extractor

curriculum/challenges/english/blocks/daily-coding-challenges-python/68cae5b538ff798bbd4da008.md

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--description--

Given a string of a valid HTML element, return the attributes of the element using the following criteria:

  • You will only be given one element.
  • Attributes will be in the format: attribute="value".
  • Return an array of strings with each attribute property and value, separated by a comma, in this format: ["attribute1, value1", "attribute2, value2"].
  • Return attributes in the order they are given.
  • If no attributes are found, return an empty array.

--hints--

extract_attributes('<span class="red"></span>') should return ["class, red"].

js
({test: () => { runPython(`
from unittest import TestCase
TestCase().assertEqual(extract_attributes('<span class="red"></span>'), ["class, red"])`)
}})

extract_attributes('<meta charset="UTF-8" />') should return ["charset, UTF-8"].

js
({test: () => { runPython(`
from unittest import TestCase
TestCase().assertEqual(extract_attributes('<meta charset="UTF-8" />'), ["charset, UTF-8"])`)
}})

extract_attributes("<p>Lorem ipsum dolor sit amet</p>") should return [].

js
({test: () => { runPython(`
from unittest import TestCase
TestCase().assertEqual(extract_attributes("<p>Lorem ipsum dolor sit amet</p>"), [])`)
}})

extract_attributes('<input name="email" type="email" required="true" />') should return ["name, email", "type, email", "required, true"].

js
({test: () => { runPython(`
from unittest import TestCase
TestCase().assertEqual(extract_attributes('<input name="email" type="email" required="true" />'), ["name, email", "type, email", "required, true"])`)
}})

extract_attributes('<button id="submit" class="btn btn-primary">Submit</button>') should return ["id, submit", "class, btn btn-primary"].

js
({test: () => { runPython(`
from unittest import TestCase
TestCase().assertEqual(extract_attributes('<button id="submit" class="btn btn-primary">Submit</button>'), ["id, submit", "class, btn btn-primary"])`)
}})

--seed--

--seed-contents--

py
def extract_attributes(element):

    return element

--solutions--

py
import re
def extract_attributes(element):
    pattern = r'([\w-]+)="([^"]*)"'
    matches = re.findall(pattern, element)
    return [f"{attr}, {val}" for attr, val in matches]