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id, title, challengeType, dashedName
| id | title | challengeType | dashedName |
|---|---|---|---|
| 6a0dcc730cb92a616f86f0bf | Challenge 295: Schema Validator Part 1 | 29 | challenge-295 |
--description--
Given an object (JavaScript) or dictionary (Python), determine if it matches the following schema:
{
username: string
}
- Extra keys are allowed
--hints--
is_valid_schema({"username": "bob"}) should return True.
({test: () => { runPython(`
from unittest import TestCase
TestCase().assertIs(is_valid_schema({"username": "bob"}), True)`)
}})
is_valid_schema({"username": "jen", "posts": 30}) should return True.
({test: () => { runPython(`
from unittest import TestCase
TestCase().assertIs(is_valid_schema({"username": "jen", "posts": 30}), True)`)
}})
is_valid_schema({"username": ""}) should return True.
({test: () => { runPython(`
from unittest import TestCase
TestCase().assertIs(is_valid_schema({"username": ""}), True)`)
}})
is_valid_schema({"username": 7}) should return False.
({test: () => { runPython(`
from unittest import TestCase
TestCase().assertIs(is_valid_schema({"username": 7}), False)`)
}})
is_valid_schema({"posts": 25}) should return False.
({test: () => { runPython(`
from unittest import TestCase
TestCase().assertIs(is_valid_schema({"posts": 25}), False)`)
}})
--seed--
--seed-contents--
def is_valid_schema(obj):
return obj
--solutions--
def is_valid_schema(obj):
return isinstance(obj.get("username"), str)