精选优质文档-倾情为你奉上Web技术 第四章作业作业4.2Write, test, and debug (if necessary) JavaScript scripts for the problems that follow. When required to write a function, you must include a script to test the function with at least two different data sets. In all cases,for testing, you must write an XHTML file that references the JavaScript file.4.2 Output : The first 20 Fibonacci numbers, which are defined as in the sequence 1, 1, 2, 3, whereeach number in the sequence a