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Javascript Array Map Async
The map function behaves exactly the same as foreach in terms of async operations, meaning all of the callbacks start at the same time and log exactly after 2 seconds. Well, you could do a trick and return a promise. Unfortunately, making the map()function asynchronous means that map()will return an array of promises.
How To Use Async Functions With Array.map In Javascript - Advanced Web Machinery from advancedweb.hu
Map() algorithm applies an async callback to each element of an array, creating promises as it does.however, the returned result by. [promise{}, promise{}, promise{}] in order to retrieve the results of all the promises, we can use promise.all(). Process all elements of the array in parallel, asynchronously and preserve the order:
Well, you could do a trick and return a promise.
Mapping an array of numbers to an array of square roots. Map () calls a function once for each element in an array. Process all elements of the array in parallel, asynchronously and preserve the order: The array filter () method the array foreach () method syntax
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