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1. developer.mozilla.org › en-US › docsPromise - JavaScript | MDN - MDN Web Docs

   developer.mozilla.org › en-US › docs

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   Oct 7, 2024 · A Promise is in one of these states: pending: initial state, neither fulfilled nor rejected. fulfilled: meaning that the operation was completed successfully. rejected: meaning that the operation failed. The eventual state of a pending promise can either be fulfilled with a value or rejected with a reason (error).

2. www.w3schools.com › Js › js_promiseJavaScript Promises - W3Schools

   www.w3schools.com › Js › js_promise

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   A JavaScript Promise object can be: The Promise object supports two properties: state and result. While a Promise object is "pending" (working), the result is undefined. When a Promise object is "fulfilled", the result is a value. When a Promise object is "rejected", the result is an error object.

3. www.freecodecamp.org › news › the-javascriptHow JavaScript Promises Work – Handbook for Beginners

   www.freecodecamp.org › news › the-javascript

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   Feb 13, 2024 · During its lifetime, a Promise can be in one of three states: Pending: A Promise is pending while the operation is still in progress. It's in an idle state, waiting for the eventual result (or error). Fulfilled: The asynchronous task that returned the Promise completed successfully.

4. www.freecodecamp.org › news › javascript-promiseHow JavaScript Promises Work – Tutorial for Beginners

   www.freecodecamp.org › news › javascript-promise

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   Nov 29, 2023 · A promise is easy to understand when you grasp the three states that can be generated by the promise: pending, resolved, and rejected. You’ve also learned how promises can be used to replace callbacks, when to use promises instead of callbacks, and how to use promise methods when you need to handle many promises in your project.

5. www.freecodecamp.org › news › javascript-promise-methodsJavaScript Promises – The promise.then, promise.catch and ...

   www.freecodecamp.org › news › javascript-promise-methods

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   May 16, 2022 · The states of promises in JavaScript. A promise has three states: pending: the promise is still in the works. fulfilled: the promise resolves successfully and returns a value. rejected: the promise fails with an error. The fulfilled and rejected states have one thing in common: whether a promise is fulfilled or rejected, the promise is settled.

6. code.mu › en › javascriptPromise states in JavaScript | Trepachev Dmitry - code.mu

   code.mu › en › javascript

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   In this lesson, we will explore three possible states of a promise in JavaScript.

7. People also ask

   How many states does a promise have?

   • A promise has three states: The fulfilled and rejected states have one thing in common: whether a promise is fulfilled or rejected, the promise is settled. So a settled state could either be a fulfilled or a rejected promise. When a promise is fulfilled, you can access the resolved data in the then method of the promise:

   JavaScript Promises – The promise.then, promise.catch and promise

   www.freecodecamp.org/news/javascript-promise-methods/

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   What are the three states of a promise?

   • During its lifetime, a Promise can be in one of three states: Pending: A Promise is pending while the operation is still in progress. It's in an idle state, waiting for the eventual result (or error). Fulfilled: The asynchronous task that returned the Promise completed successfully.

   How JavaScript Promises Work – Handbook for Beginners

   www.freecodecamp.org/news/the-javascript-promises-handbook/

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   What is a JavaScript promise object?

   • When the producing code obtains the result, it should call one of the two callbacks: A JavaScript Promise object can be: The Promise object supports two properties: state and result. While a Promise object is "pending" (working), the result is undefined. When a Promise object is "fulfilled", the result is a value.

   JavaScript Promises - W3Schools

   www.w3schools.com/Js/js_promise.asp

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   How does a promise work?

   • A Promise starts out in the pending state, then depending on the result, will transition to either the fulfilled or rejected state. A Promise is said to be settled once it reaches either the fulfilled or rejected state. Of course, there is no guarantee that the asynchronous task will ever complete.

   How JavaScript Promises Work – Handbook for Beginners

   www.freecodecamp.org/news/the-javascript-promises-handbook/

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   How to demonstrate the use of promises in JavaScript?

   • To demonstrate the use of promises, we will use the callback examples from the previous chapter: ECMAScript 2015, also known as ES6, introduced the JavaScript Promise object. The following table defines the first browser version with full support for Promise objects:

   JavaScript Promises - W3Schools

   www.w3schools.com/Js/js_promise.asp

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   What are the properties of a promise object?

   • The Promise object supports two properties: state and result. While a Promise object is "pending" (working), the result is undefined. When a Promise object is "fulfilled", the result is a value. When a Promise object is "rejected", the result is an error object. You cannot access the Promise properties state and result.

   JavaScript Promises - W3Schools

   www.w3schools.com/Js/js_promise.asp

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8. medium.com › @AlexanderObregon › understandingJavaScript Promises Explained - Medium

   medium.com › @AlexanderObregon › understanding

   Jun 20, 2024 · A Promise can be in one of three states: Pending: Initial state, neither fulfilled nor rejected. Fulfilled: The operation completed successfully. Rejected: The operation failed. The state...