In the last few days, a new Coverage tab has arrived in DevTools in Chrome Canary. It had been under an experimental feature switch prior to that. This post will look at what it does, how to use it, and what you can do with the data it provides, in order to improve app performance.
The feature uses dynamic analysis to provide runtime code coverage statistics. Dynamic analysis is the process of running an application and gathering data during the execution of the code. In this case, the coverage is gathered at runtime by flagging the code that has been executed.
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