JavaScript Asynchrony and async/await in Selenium WebDriver Tests

Asynchrony in JavaScript

JavaScript is an asynchronous language. All I/O in it will (almost) always be asynchronous. Meaning that a callback will be needed to notify the program when the I/O operation is done. But this is not true in most other languages. In Java, for example, doing I/O is a synchronous operation. A file copy looks like this:

Selenium WebDriver Code

Given all the above, imagine my surprise when I saw this Selenium WebDriver code:

The Future

It seems that the Selenium community understands that the scam that is this synchronous/asynchronous mode should be temporary:

What Now?

Want to learn more about browser tests? You can learn more in previous posts of mine — here and here.



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