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JavaScriptJavaScript Interview QuestionsCareerKit
- TopicJavaScript
- LevelBeginner to advanced
- Length212 pages
- Inside150 questions
- FormatPDF
JavaScript Interview Questions
Everything from data types to closures, promises and the event loop, explained simply with code examples.
What's inside
- Basics: types, scope and hoisting
- Functions, closures and this
- Objects, prototypes and classes
- Promises, async/await and the event loop
- ES6+ features interviewers ask about
- Coding problems with solutions
Sample from the ebook
What is a closure?
A closure is a function that remembers the variables from the scope where it was created, even after that scope has finished running. They're used for data privacy and in callbacks.
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Free sample questions
Read 12 full answers from this ebook for free, and see all 150 questions it covers.
- What are the data types in JavaScript?
- What is the difference between var, let and const?
- What is a closure?
- What does this print: closures inside a loop with var and let?