6.25 Programming Tools

• Locating source code definitions: and editing
• Locating documentation: help.
• Locating uses of a word: where.
• Locating exception source: Examining backtraces.
• Examining compiled code: see and friends.
• Examining data: Stacks and Memory.
• Forgetting words: Usually before reloading.
• Debugging: By inserting ~~ tracers.
• Assertions: Making your programs self-checking.
• Singlestep Debugger: Executing your program word by word.
• Code Coverage: Measure execution frequency.