[Solved] Consider this code snippet: const querystring = require('querystring'); const parsed = querystring.parse('x=5&x=10&x=15'); console.log(parsed.x); What will be logged to the console? | Node.js

Node.js - HTTP Module

Consider this code snippet:

const querystring = require('querystring');
const parsed = querystring.parse('x=5&x=10&x=15');
console.log(parsed.x);

What will be logged to the console?

A["5", "10", "15"]

B"15"

C"5"

Dundefined

Step-by-Step Solution

Solution:

Step 1: Understand repeated keys behavior
The 'querystring' module keeps only the last value for repeated keys.
Step 2: Analyze the input
For 'x=5&x=10&x=15', the last value for 'x' is '15'.
Final Answer:
"15" -> Option B
Quick Check:
Repeated keys overwrite previous values [OK]

Quick Trick: Last repeated key value is retained [OK]

Common Mistakes:

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