This really depends on what's inside ReportBuilder. Maybe it's a class that has to collect tons of data and do complex analysis.
In that case, it's super easy that you can use all that functionality in just 3 lines of code.
Also, don't forget that you are already using built-in classes every day! From using arrays to typing console.log(), all that functionality has to be programmed somewhere, and that's mostly in a class file.
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This really depends on what's inside ReportBuilder. Maybe it's a class that has to collect tons of data and do complex analysis.
In that case, it's super easy that you can use all that functionality in just 3 lines of code.
Also, don't forget that you are already using built-in classes every day! From using arrays to typing console.log(), all that functionality has to be programmed somewhere, and that's mostly in a class file.