ES6 Interview Questions For Freshers

How can you handle errors in promises?

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What is a Map object in JavaScript?

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Explain the concept of lexical scoping in JavaScript.

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What is the purpose of the let keyword in ES6?

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What is the difference between named and default exports in ES6 modules?

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What is the purpose of modules in ES6?

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How can you create classes in ES6?

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Explain the concept of hoisting in JavaScript.

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What are generators in ES6?

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What is a callback function and how does it work?

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What is the difference between synchronous and asynchronous programming?

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What is a Set object in JavaScript?

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What are promises in JavaScript?

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Explain the rest parameter in ES6.

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What is the purpose of the spread operator in JavaScript?

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How can you set default parameter values in ES6?

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What is destructuring assignment in ES6 and how does it work?

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What is a template literal in JavaScript?

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Explain the concept of block scope.

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What is the purpose of arrow functions in ES6?

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What are the features introduced in ES6?

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What is the difference between var, let, and const in JavaScript?

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Explain the concept of async/await in JavaScript.

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What is the purpose of the Symbol data type in JavaScript?

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What is the purpose of the for...of loop in ES6?

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What is a WeakSet object in JavaScript?

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What is a WeakMap object in JavaScript?

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ES6 Intermediate Interview Questions

What is the purpose of the Object.setPrototypeOf() method in JavaScript?

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What is the purpose of the Array.from() method in JavaScript?

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Explain the concept of the Object.entries() method in JavaScript.

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What is the purpose of the Math object in JavaScript?

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What are the differences between let and const in JavaScript?

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Explain the concept of promises chaining in JavaScript.

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What is a generator function in JavaScript?

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How can you create a deep copy of an object in JavaScript?

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How can you convert a Set object to an array in JavaScript?

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What is the difference between call, apply, and bind methods in JavaScript?

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Explain the concept of prototypal inheritance in JavaScript.

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What is the purpose of the String.raw() method in JavaScript?

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What are the advantages of using generators over callbacks in JavaScript?

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Explain the concept of the event loop in JavaScript.

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How can you handle multiple promises simultaneously?

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What are the differences between async/await and promises in JavaScript?

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What is a Symbol iterator in JavaScript?

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Explain the concept of tail recursion in JavaScript.

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How can you iterate over a Map object in JavaScript?

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What is the purpose of the Number.isNaN() method in JavaScript?

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What is the difference between function expression and function declaration in JavaScript?

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What is the purpose of the Object.defineProperty() method in JavaScript?

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How can you create a private variable in JavaScript?

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What is the purpose of the Object.assign() method in ES6?

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Explain the concept of memoization in JavaScript.

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What is a tagged template in JavaScript?

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How can you convert a Map object to an array in JavaScript?

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What are the differences between Map and Set objects in JavaScript?

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What is the purpose of the Proxy object in ES6?

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Explain the concept of currying in JavaScript.

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How can you handle asynchronous operations using promises?

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What are the advantages of using ES6 modules over CommonJS?

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ES6 Interview Questions For Experienced

What is the purpose of the Object.freeze() method in JavaScript?

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Explain the concept of decorators in JavaScript.

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How can you merge multiple objects in JavaScript?

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How can you create private methods in ES6 classes?

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What is the purpose of the Number.prototype.toFixed() method in JavaScript?

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What is the purpose of the Number.prototype.toString() method in JavaScript?

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How can you remove duplicates from an array in JavaScript?

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Explain the concept of the Array.prototype.map() method in JavaScript.

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What is the purpose of the String.prototype.split() method in JavaScript?

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How can you convert an object to a JSON string in JavaScript?

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What is the purpose of the Array.prototype.slice() method in JavaScript?

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Explain the concept of the Object.create() method in JavaScript.

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What are the differences between ES5 and ES6 syntax in JavaScript?

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How can you iterate over an object in JavaScript?

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Explain the concept of the Array.prototype.findIndex() method in JavaScript.

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What is the purpose of the Object.getOwnPropertyNames() method in JavaScript?

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How can you create a deep copy of an array in JavaScript?

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What are the advantages of using generators over async/await in JavaScript?

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Explain the concept of tail call optimization in JavaScript.

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How can you check if a value is an integer in JavaScript?

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What is the purpose of the String.prototype.replace() method in JavaScript?

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Explain the concept of promise.all() in JavaScript.

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What is the purpose of the Array.prototype.reduce() method in JavaScript?

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