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Can I use strict mode in production environment?

Peer-reviewed by HireXTech Technical Panel • Updated for 2025/2026 hiring • Editorial standards
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Interviewer Expectations for this Question
01
Core Competency

Assesses fundamental understanding of Vue.js conventions, runtime behavior, and memory/performance considerations.

02
Evaluation Criteria

Hiring managers look for precision, avoidance of ambiguous jargon, and ability to explain trade-offs under real production conditions.

Comprehensive Model Answer Verified Solution

No, it is not recommended to use strict mode in production environment. Strict mode runs a synchronous deep watcher
on the state tree for detecting inappropriate mutations and it can be quite expensive when you perform large amount
of mutations. i.e, It can impact performance if you enable in production mode.
Hence, it should be handled through build tools,

const store = new Vuex.Store({
  // ...
  strict: process.env.NODE_ENV !== 'production'
})

****

Candidate Response Strategy & Interview Tips

  1. Start with a concise one-sentence summary: Deliver a direct, confident answer first before expanding into nuances.
  2. Demonstrate real-world trade-offs: Discuss where this approach excels and when you would avoid it in production systems.
  3. Discuss complexity & edge cases: Proactively explain time/space complexity or boundary conditions (null values, scale limits).
  4. Prepare for interviewer follow-ups: Technical hiring panels frequently probe deeper into concurrency, backward compatibility, or alternative libraries.
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