Reverse Words — Reusable Function

Node.js Published Updated 0 Views Verified
Node.js Coding Challenge — Reverse Words (Reusable Function). You are building a small JavaScript/Node.js utility. Convert the logic into a reusable function with clear parameters and a useful return value. Explain the logic briefly and provide runnable Node.js code. The solution must avoid accidental string-number concatenation and should behave predictably for normal input.
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Questions & Answers

Answer & Explanation

4 Answers
Verified

Possible but Incorrect Code

function reverseWords(s) { return String(s.trim().split(/\s+/).reverse().join(' '); } console.log(reverseWords('node js is fast'));
Additional Explanation
यह option जानबूझकर एक common bug/unsafe approach दिखाता है। इसे production solution के रूप में इस्तेमाल करने से पहले variable scope, async flow, module path, validation, error handling और security checks verify करें। ऊपर दिए गए correct option से exact difference compare करें.
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Editorial Answer 1
Verified Correct Answer

Correct Code / Solution

function reverseWords(s) { return s.trim().split(/\s+/).reverse().join(' '); } console.log(reverseWords('node js is fast'));
Additional Explanation
This solution implements Reverse Words using standard JavaScript/Node.js syntax. Keep numeric inputs as numbers, validate boundary cases when the problem requires it, and return a value from reusable functions instead of mixing calculation with output.
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Editorial Answer 2
Verified Correct Answer

Correct Code / Solution

function reverseWords(s) { return s.trim().split(/\s+/).reverse().join(' '); } console.log(reverseWords('node js is fast'));
Additional Explanation
This solution implements Reverse Words using standard JavaScript/Node.js syntax. Keep numeric inputs as numbers, validate boundary cases when the problem requires it, and return a value from reusable functions instead of mixing calculation with output.
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Editorial Answer 3
Verified Correct Answer

Correct Code / Solution

function reverseWords(s) { return s.trim().split(/\s+/).reverse().join(' '); } console.log(reverseWords('node js is fast'));
Additional Explanation
This solution implements Reverse Words using standard JavaScript/Node.js syntax. Keep numeric inputs as numbers, validate boundary cases when the problem requires it, and return a value from reusable functions instead of mixing calculation with output.
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Editorial Answer 4