JavaScript Interview Questions
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Q21.
What is the difference between function declaration and expression?
Q22.
What are arrow functions?
Q23.
What is a module in JavaScript?
Q24.
Explain ES6 features.
Q25.
What is JSON and how does parsing work?
Q26.
What is localStorage and sessionStorage?
Q27.
What is a shallow copy vs deep copy?
Q28.
What is optional chaining?
Q29.
What is nullish coalescing?
Q30.