Also, in case of while loop, it’s important to pay attention to the condition which needs to be false at some point to not break the code. Usage of the loops is very common in software development, but as developers, we need to remember about proper implementation and avoiding nesting loops because it has a bad impact on performance. The other two loops work in a different way, so the comparison wouldn’t be reliable.
In this article, I described five different loops available in Javascript programming language and tested the performance of three of them. forEach() method is the slowest one in a testing environment. For loop is the second fastest and it seems that. As we can see in the table do…while loop is the fastest one. Let’s now take a look and the summary of all the data we got.Īll loops were tested in Chrome browser. I tested it with similar code to execute, the same amount of executions and in three different browsers. In the article, I tested the performance of three popular loops and one array method, for loop, while loop, do while loop and. Var string = ‘ Duomly ’ for ( let char of string ) Performance summary
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