ugBASIC User Manual

   CLEAR size

The CLEAR command serves two purposes: when CLEAR is executed, all numeric variables are initialized to zero and all strings are set to the empty string (“”). This is especially useful at the beginning of a program to ensure that there are no residual values from previous executions. It can be used to resize (statically) allocated memory for dynamic strings. This may be necessary to avoid “out of memory” errors when working with strings.

  CLEAR 2048

 Clr

• Atari (400/800)
• Atari XL/XE
• Commodore 128 (MOS 8502)
• Commodore 128 (Zilog Z80)
• Commodore 64
• Commodore 64+REU
• TRS-80 Color Computer
• TRS-80 Color Computer 3
• ColecoVision
• Amstrad CPC 664
• Dragon 32
• Dragon 64
• Thomson MO5
• Thomson MO5
• Olivetti Prodest PC128
• Commodore PLUS/4
• SEGA SC-3000
• SEGA SG-1000
• VG-5000
• Commodore VIC-20
• ZX Spectrum 48

If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please open an issue for this keyword on GitHub. Thank you!