JavaScript Questions

Arrow function

Constructor function

Method

Generator function

It's used to create an instance of a parent class.

It extends the functionality of a built-in JavaScript object like Array or String.

It defines a new static method within a class.

It establishes inheritance by creating a subclass that inherits properties and methods from a superclass.

To handle Promise rejections (errors).

To handle successful Promise resolutions.

To filter the results of a Promise.

To transform the resolved value of a Promise.

Employing synchronous functions exclusively.

Using nested 'try...catch' blocks extensively.

Switching to a different programming language.

Chaining multiple '.then()' methods together.

bind() creates a new function with a bound 'this' context, while call() and apply() invoke the function immediately.

bind() immediately invokes the function, while call() and apply() don't.

bind() doesn't modify the original function, while call() and apply() do.

bind() can only be used with object methods, while call() and apply() can be used with any function.

It stops an event from being handled by any further listeners.

It triggers a custom event on an element.

It prevents the default behavior of an element, like a form submission.

It removes an event listener from an element.

To define static methods for a class.

To handle asynchronous operations.

To create multiple instances of an object with shared properties and methods.

To define private variables within a function scope.

previousSibling

closest()

parentElement

parentNode

Chrome DevTools Performance Tab

JSON.stringify()

Array.reduce()

console.time()

It handles user interactions like clicks and scrolls.

It executes tasks that have been explicitly delayed with setTimeout.

It processes promises and other tasks with higher priority than the main task queue.

It manages network requests and responses.