bulls and cows #440
bulls and cows #440
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Thank you for your hard work on this project! 🛠️ While your implementation covers the core requirements of the "Bulls & Cows" game, there are a few critical issues that need to be addressed before we can approve the pull request:
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Counting Cows: The logic for counting cows may overcount if a digit appears more than once in the target number. Implement a mechanism to track which digits have already been counted as cows to ensure accuracy.
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Random Number Generation: The current method of converting a
Setof digits to a number does not guarantee a valid 4-digit number due to uncontrolled digit order. Consider using an array to manage digit order explicitly. -
User Input Validation: The check for numeric input using
isNaN(+userInput)might not catch all invalid cases, such as strings with non-digit characters. A regular expression could provide a more robust validation. -
Code Readability: The use of a switch statement for input validation could be refactored to
ifstatements for improved readability and clarity.
Please address these issues to ensure the functionality and reliability of your code. Keep up the great work, and don't hesitate to reach out if you need any help! 😊
✨ Please rate this review in the Platform's notification center. I will be grateful for your feedback! ✨
🔄 Fix the issues, commit the changes, and then re-request my review using the Re-request review button in the Reviewers tab.
src/modules/checkIsValidUserInput.js
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| switch (true) { | ||
| case userInput[0] === '0': | ||
| return false; | ||
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| case isNaN(+userInput): | ||
| return false; | ||
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| case new Set(userInput.split('')).size !== 4: | ||
| return false; | ||
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| default: | ||
| return true; | ||
| } |
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The switch statement is used here to validate the user input. While it works, using a series of if statements might be more readable for this type of validation logic. Consider refactoring for clarity.
src/modules/checkIsValidUserInput.js
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| case userInput[0] === '0': | ||
| return false; | ||
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| case isNaN(+userInput): |
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The check isNaN(+userInput) is intended to ensure the input is numeric. However, this will not catch cases where the input is a numeric string with non-digit characters (e.g., '12a4'). Consider using a regular expression to ensure the input is strictly a 4-digit number.
src/modules/generateRandomNumber.js
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| digits.add(randomDigit); | ||
| } | ||
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| return Number(Array.from(digits).join('')); |
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The current implementation converts the Set of digits directly to a number. This approach does not guarantee that the resulting number will always be a valid 4-digit number, as the order of digits in a Set is not controlled. Consider using an array to manage the order of digits explicitly, ensuring the first digit remains at the start.
src/modules/getBullsAndCows.js
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| numberToGuessStr.includes(guessNumber) && | ||
| guessNumber !== rightNumber |
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The current logic for counting cows does not account for the possibility of counting the same digit multiple times if it appears more than once in the numberToGuessStr. Consider using a mechanism to track which digits have already been counted as cows to avoid overcounting.
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Review Summary
Great job on implementing the "Bulls & Cows" game! 🎉 Your code meets most of the task requirements and constraints, and it's clear that you've put a lot of effort into making it work. Here are some key points to consider for improvement:
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Counting Cows Logic: The
getBullsAndCowsfunction may overcount cows if a digit appears more than once in the target number. Consider implementing a mechanism to track which digits have already been counted as cows to ensure accuracy. -
User Input Validation: While the
checkIsValidUserInputfunction effectively validates that the user input is a 4-digit number with unique digits and does not start with zero, the current check using!isNaN(+userInput)might not catch all invalid cases, such as strings with non-digit characters. Consider using a regular expression to ensure the input consists only of digits. -
Random Number Generation: The
generateRandomNumberfunction is well-structured and meets the requirement of generating a 4-digit number with unique digits that does not start with zero. -
Code Readability: Your code is generally readable and uses appropriate constructs. The use of
ifstatements for validation logic is clear and concise.
Overall, the main issue to address is the logic for counting cows to ensure it accurately reflects the game rules. Other aspects of the implementation align well with the task requirements.
Keep up the great work, and make sure to address these issues in future iterations to enhance your coding skills. Remember, learning from these experiences is a crucial part of your development journey. 🚀
✨ Please rate this review in the Platform's notification center. I will be grateful for your feedback! ✨
| /* Write your code here */ | ||
| const isFourDigits = userInput.length === 4; | ||
| const hasUniqueDigits = new Set(userInput.split('')).size === 4; | ||
| const isNumber = !isNaN(+userInput); |
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The check isNumber using !isNaN(+userInput) might not catch all invalid cases, such as strings with non-digit characters. Consider using a regular expression to ensure the input consists only of digits.
| } else if (guessNumber.includes(userNumber[i])) { | ||
| result.cows++; |
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The current logic for counting cows may overcount if a digit appears more than once in the numberToGuess. Implement a mechanism to track which digits have already been counted as cows to ensure accuracy.
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