What is the promise lifecycle in JavaScript?
An example of an AI chatbot conversation about the promise lifecycle in JavaScript.
What is the promise lifecycle in JavaScript?
The promise lifecycle consists of three states: pending, fulfilled, and rejected. It describes how promises transition between these states.
Can you explain each state in detail?
Sure! A promise starts in the 'pending' state. If the operation is successful, it moves to 'fulfilled'; if it fails, it goes to 'rejected'.
What happens when a promise is fulfilled?
When a promise is fulfilled, it means the operation completed successfully, and the promise returns a value that can be used.
And what about a rejected promise?
A rejected promise indicates that the operation failed, and it returns a reason for the failure, which can be handled using .catch().
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