Synchronous and Asynchronous Programming: Programming 101

Web Reference: SYNCHRONOUS EXAMPLE: Any process consisting of multiple tasks where the tasks must be executed in sequence, but one must be executed on another machine (Fetch and/or update data, get a stock quote from financial service, etc.). If it's on a separate machine it is on a separate thread, whether synchronous or asynchronous. May 23, 2013 · Synchronous / Asynchronous communication has nothing to do with application waiting or not for resources. Synchronous communication is when communication looks like ping-pong one request and one response in that particular order. Asynchronous communication is when there could be multiple requests and responses could return in random order. May 2, 2013 · 1 Synchronous functions are blocking while asynchronous functions are not. In synchronous functions, statements complete before the next statement is run. In this case, the program is evaluated exactly in order of the statements and execution of the program is paused if one of the statements take a very long time.

YouTube Excerpt: Quick video defining what the difference is between asynchronous and synchronous programming. I show a specific PHP example for synchronous coding and then show some JavaScript for an asynchronous example. Asynchronous processing can be tricky and lead to pitfalls. Understanding this is critical to writing good Javascript. 0:00 Introduction and Definition 0:31 PHP example 1:47 JavaScript example 4:14 Joke of the day

Quick video defining what the difference is between asynchronous and synchronous programming. I show a specific PHP example for synchronous coding...

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