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CodeCareer4u | Tech Blogs, Interview Preparation & Developer Tools

What is performance optimization in JavaScript?

Why is JavaScript performance important?

What are common causes of poor JavaScript performance?

How does the browser render a web page?

What is the critical rendering path?

What is reflow (layout)?

What is repaint?

What is the difference between reflow and repaint?

How can excessive DOM manipulation affect performance?

What is the cost of layout thrashing?

How do you optimize DOM updates?

What is lazy loading?

What is code splitting?

How does minification improve performance?

What is tree shaking?

What is memoization?

How does debouncing improve performance?

How does throttling improve performance?

How do Web Workers help performance?

What is the impact of large JavaScript bundles?

How does garbage collection affect performance?

What are memory leaks?

How do you detect performance issues?

What browser tools help with performance analysis?

What are common interview traps related to performance optimization?

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