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Discusión:
https://stackoverflow.com/questions/748175/asynchronous-vs-synchronous-execution-what-does-it-really-mean
Analisis
1. (fuente)
Synchronous is not ideal for multiple, large CSV file since you will need to wait until the file is processed by the server to submit another request. On large files, this also may cause your browsers to return with timeout errors due to the server being too busy. If you have multiple files, asynchronous will allow you to submit multiple files to the server queue to be processed with a email receipt once completed.
2. (fuente)
But, like all things in programming, it’s not something that you should use in every instance; in fact, there are some situations in which you should avoid it. Asynchronous programming has actually been around for a long time, but in recent years, it’s become more widely used. According to Mike James at iProgrammer, “Often the programmer is fully aware that what they are doing is object oriented but only vaguely aware that they are writing asynchronous code.” So, we set out to identify the best use cases for async as well as situations in which you shouldn’t use it. We searched the web for insights and reached out to a panel of programmers and asked them to answer this question:
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