You know those little icons in the Xcode developer docs? Like the 4 squares for frameworks or the M for method? How many can you find and give examples for? Also how many can you identify off the top of your head? Do you know what each of these are and what they represent?

What follows is an exhaustive list sourced from an internal Xcode framework. For each of the following, your challenge is to describe what the icon looks like and offer an example that uses the icon. For example “T” is a type alias. You can find one by following UIKit > Drawing > UIGraphicsPDFRenderer.DrawingActions or searching for DrawingActions.

• article
• category
• class
• class extension
• constant
• endpoint
• enum
• extension
• field
• framework
• function
• group
• local_variable
• macro
• method
• object
• operator
• property
• protocol
• sample code
• struct
• subscript
• typedef
• union
• variable

Have fun and drop a comment with a link to your finds. Please don’t put answers here directly as that may spoil the challenge for others.