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Identify the error in this code snippet:

medium📝 Debug Q6 of 15
Node.js - URL and Query String Handling
Identify the error in this code snippet:
const url = new URL('https://example.com');
url.searchParams.append('page');
AURL string is invalid
BURL constructor is used incorrectly
CMissing value argument in append method
DsearchParams does not have append method
Step-by-Step Solution
Solution:

  1. Step 1: Check append method usage

    The append method requires two arguments: key and value. Here, value is missing.

  2. Step 2: Verify other parts

    URL constructor and URL string are valid; searchParams has append method.

  3. Final Answer:

    Missing value argument in append method -> Option C

  4. Quick Check:

    append requires key and value [OK]
Quick Trick: append needs both key and value arguments [OK]
Common Mistakes:
  • Passing only key to append
  • Confusing append with set
  • Thinking append works without value

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