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JavaScript async allows non-blocking code execution by using Promises or async/await syntax.
Async functions return a Promise object.
Promises represent a value that may be available now, in the future, or never.
Async/await syntax simplifies asynchronous code by using keywords async and await.
Callbacks can also be used for handling asynchronous operations.
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I applied via Naukri.com and was interviewed in Aug 2023. There were 3 interview rounds.
posted on 17 Nov 2022
I applied via Job Fair and was interviewed in Oct 2022. There were 3 interview rounds.
Check the basic levels for me ,then you analyse my talents
I applied via Approached by Company and was interviewed before May 2023. There were 3 interview rounds.
Cookies are stored on the client side while tokens are stored on the server side for authentication purposes.
Cookies are sent with every HTTP request, while tokens are typically sent in the Authorization header.
Cookies can be vulnerable to CSRF attacks, while tokens can be more secure if implemented correctly.
Cookies have a size limit of 4KB, while tokens can store more data.
Cookies are typically used for session manag...
Implementing caching mechanisms has significantly increased performance and improved delivery times.
Utilizing caching mechanisms such as Redis or Memcached to store frequently accessed data
Implementing CDN (Content Delivery Network) to cache static assets and reduce server load
Optimizing database queries and indexing to improve retrieval speed
Implementing lazy loading for images and resources to reduce initial load tim
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