NOTE: It can be helpful to arrange your desktop with the code editor and tests page side-by-side. As the changes to the shell functions are saved, the tests will rerun automatically.

list_items = li_O + 'Length of string is : ' + input.length + li_C; list_items += li_O + 'First index of ' + search + ' is ' + input.indexOf(search) + li_C; list ...

Functions are sections of code used in assignment to return a single value to a variable. There are three pre-defined functions that you should understand. This pre-defined function is used to ...

Most high level languages will make use of pre-defined functions. A pre-defined function is built into the software and does not need to be created by a programmer. Pre-defined functions often ...