[Solved] Identify the bug in this dynamic config update code snippet: config = {"feature": false} function updateConfig(newConfig) { config = {...config, newConfig} } updateConfig({"feature":... | Microservices

Microservices - Configuration and Secrets Management

Identify the bug in this dynamic config update code snippet:

config = {"feature": false}
function updateConfig(newConfig) {
  config = {...config, newConfig}
}
updateConfig({"feature": true})
print(config["feature"])

AMissing callback registration

BIncorrect object spread syntax

CConfig variable not declared

DPrint statement before update

Step-by-Step Solution

Solution:

Step 1: Review object spread usage
The syntax {...config, newConfig} nests newConfig as an object instead of merging keys.
Step 2: Correct syntax for merging
Should use {...config, ...newConfig} to merge keys properly.
Final Answer:
Incorrect object spread syntax -> Option B
Quick Check:
Spread operator must merge keys correctly [OK]

Quick Trick: Use ...newConfig to merge objects, not newConfig alone [OK]

Common Mistakes:

Using newConfig without spread operator
Ignoring callback registration importance
Assuming print order causes error

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More Microservices Quizzes

Identify the bug in this dynamic config update code snippet:

Step 1: Review object spread usage

Step 2: Correct syntax for merging

Final Answer:

Quick Check:

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