Summery EP 24.txt

Promise API:
	Promise.all() : 
		parallal API calls.
		it takes an iterable(array) promises as input.
		it return an array of objects with all the results.It will wait for all of them to finish and return together as an array.
		if any of the promises get rejected promise.all() will throw an error.it will not wait for other promises to settele.
		
	promise.allSetteled(): 
		If any of the promises is gets rejected it will wait for all promises to get setteled.After that it will retun as an array  of objects along with the error.

	promise.race():
		it takes iterable(array) of promises.
		Whatever promise is settled first it will return that result only.If the first settled promise is rejected it will throw an error.It will not wait for other promises to settle.
		
	promise.any():
		it takes iterable(array) of promises. 
		It will wait for first promise to get success/resolved/fullfilled and return the successful result only.
		If all the promise gets failed it will return an Aggregated Error.It will be an array of all errors.