Recap
Well Done!!!

You made it to the end. Impressive. That was ALOT of concepts and material in not a whole lot of space.

Here is the quick recap:

BoxLang is a language which has two syntaxes. One is a markup language which looks very similar to HTML with attributes and values. Most of the these tags start with <bx:...>. The second is a script syntax which looks similar to JavaScript and other ECMA script languages.
To make an area that BoxLang should process, wrap that area in <bx:output>...</bx:output>
To establish code that BoxLang needs to process wrap it in #s, i.e. #5+3# will evaluate to 8. If the code is inside a tag, you don't always need the #s as in <bx:set total=5+3>
BoxLang is a typeless variable language which means you don't need to declare a variable type before using a variable. A variable can have an underlying value but be displayed in a more human friendly way using formatters.
To determine what type of variable something is, there are many IsValid() functions such as IsValid("date",variable) and IsValid("Numeric",variable).
Simple variables can include strings, numbers, booleans and dates among others.
Complex variables include Objects (or Structs in BoxLang) and Arrays.
The elements of a Struct are referenced by name which are called Keys.
The elements of an Array are reference by number or "index".
A useful command is the <bx:dump> tag which will display a variable visually on the screen including complex data types.
Variables are saved in several locations called "scopes" which are a "bucket of variables" so to speak.
One of these are the URL scope which stores variables and values which are passed in the URL of the page. This is in the format ?variable1=value1&variable2=value2..... or "GET" variables
Another of the scopes is the FORM scope which accepts "POST" variables, usually submitted via a form on a web page.
We can create our own functions to help organize the code and increase re-usability.
These functions have names and we can call them and pass in arguments with the format functionName(arg1,arg2,arg3,...)
BoxLang links to databases via a connection called a datasource, the credentials of which are stored on the server and have been set up for you.
By using the <bx:dbinfo> tag we can see the table/views in the database and the fields in a data table.
Logic code can, and should be, placed in .bx files which can be accessed by View layer pages and other .bxs and .bx files.
Next week, we will look at getting data out of our datatables and onto a page!
Take a break!