[Solved] Identify the error in this code snippet: setTimeout(console.log('Hello'), 1000); — Ans: console.log is called immediately instead of after 1000ms | Node.js

Node.js - Timers and Scheduling

Identify the error in this code snippet:

setTimeout(console.log('Hello'), 1000);

AThe delay argument is missing

BThe delay must be 0 or less

Cconsole.log is called immediately instead of after 1000ms

DsetTimeout requires a string as first argument

Step-by-Step Solution

Solution:

Step 1: Analyze the first argument of setTimeout
console.log('Hello') is called immediately, returning undefined, which is passed to setTimeout.
Step 2: Understand correct usage
setTimeout expects a function as first argument, not the result of a function call.
Final Answer:
console.log is called immediately instead of after 1000ms -> Option C
Quick Check:
Function call inside setTimeout runs immediately [OK]

Quick Trick: Pass a function, not a function call, to setTimeout [OK]

Common Mistakes:

Master "Timers and Scheduling" in Node.js

9 interactive learning modes - each teaches the same concept differently

More Node.js Quizzes

Identify the error in this code snippet: