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What is a promise in JavaScript?

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In JavaScript, a Promise is an object that will produce a single value some time in the future. If the promise is successful, it will produce a resolved value, but if something goes wrong then it will produce a reason why the promise failed. The possible outcomes here are similar to that of promises...
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In JavaScript, a Promise is an object that will produce a single value some time in the future. If the promise is successful, it will produce a resolved value, but if something goes wrong then it will produce a reason why the promise failed. The possible outcomes here are similar to that of promises in real life.

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My teaching experience 12 years

object representing eventual completion or failure of an asynchronous operation in JavaScript.
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object representing eventual completion or failure of an asynchronous operation in JavaScript.
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object representing eventual completion or failure of an asynchronous operation in JavaScript.

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