02 No further confusion about Promise | Promise Advanced JS Simplified

No further confusion about Promise | Promise Advanced JS Simplified
‪@ApplyIT2021‬ #applyit #javascript #programming #asyncawait
It is very important to understand how exactly async operation is handled by a separate browser thread instead of using main JavaScript thread. This video explains handling of async operation using a detailed diagram. This video also explains about promise object and its internal data. It also explains possible states of a promise and what transitions will occur when a promise gets fulfilled or gets rejected.
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A Promise is an object that wraps an asynchronous operation and returns the result (or error) when the operation completes. A Promise can be in one of three states:
Pending: The initial state when the Promise is created, and the asynchronous operation is still ongoing.
Fulfilled: The state when the asynchronous operation completes successfully, and the Promise holds a value.
Rejected: The state when the asynchronous operation fails, and the Promise holds a reason for the failure.
This video answers many questions related to Promise:
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Nice way to explain complex concepts of Promise

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