TypeScript · Type Erasure

TypeScript Type Erasure puzzles

12 TypeScript puzzles on type erasure. Read the snippet, guess the output, then reveal the answer and why TypeScript behaves that way.

• #1172026-10-01
• #1072026-09-21
• #1052026-09-19
• #1032026-09-17
• #602026-08-05
• #552026-07-31
• #422026-07-18
• #412026-07-17
• #342026-07-10
• #292026-07-05
• #262026-07-02
• #122026-06-18