Type Assertions

Tell TypeScript what a value is with 'as' or angle brackets; assert safely, work with unknown, and preview 'as const' for literal inference.

• Tell TS It’s a StringNot started
  Start
• Sum Unknown NumbersNot started
  Start
• Point from JSONNot started
  Start
• First Length (Array Assert)Not started
  Start
• Levels with as constNot started
  Start
• Sum Values from Unknown MapNot started
  Start