Node.js - URL and Query String Handling
What will be the output of this Node.js code?
const decoded = decodeURIComponent('Hello%20World%21');
console.log(decoded);What will be the output of this Node.js code?
medium📝 Predict Output Q5 of 15
Step-by-Step Solution
Solution:
Step 1: Understand decodeURIComponent behavior
It converts percent-encoded sequences like %20 to space and %21 to '!'.Step 2: Decode the string
'Hello%20World%21' becomes 'Hello World!'.Final Answer:
Hello World! -> Option BQuick Check:
decodeURIComponent output = decoded readable string [OK]
Quick Trick: decodeURIComponent converts %20 to space and %21 to ! [OK]
Common Mistakes:
- Expecting encoded string as output
- Confusing decodeURI with decodeURIComponent
- Not decoding special characters
Master "URL and Query String Handling" in Node.js
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