Online version, script to copy used range to a new table

I'm trying to make a script that will automatically copy all the data from one table to another. I am having trouble with the language, I know I can select the entire data with usedRange, but I don't how to get it from there to the other table. I can only find tutorials with filters to add rows based in the filter. Anyone knows how to copy the entire used range, based only on it being filled?