US Civil Service
JavaScript ES6+ Mastery
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A comprehensive quiz covering JavaScript ES6+ Mastery. Test your knowledge and earn a certificate!
What's in this quiz
Questions
10 · MCQ
Duration
45 minutes
Negative marking
Enabled
Sample question
Question 1 of 10 · 1.00 mark
What does the spread operator (...) do in JavaScript?
Multiplies array elements
Expands iterable into individual elements
Creates a deep copy
Concatenates strings
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