|  | Basic tricks |  |
| Programming/Basic
1) IF A<>0 can be reduced to IF A (warning: this trick must not be applied with multiple variables, es. IF A% AND B%) 2) GOTO 0 can be reduced to GOTO. 3) ....: GOTO 1000: here any string as comment is accepted without a REM (also works with ....: RETURN) 4) NEXT x,y can be entered as NEXT: NEXT (runs faster) 5) IF ... THEN GOTO 2000 can be reduced to IF ... THEN 2000 6) ? FRE(n) is useful to pack string area by eliminating old useless strings (not a real trick) 7) To check if a file is existing: "RENAME a$ TO a$" (a$=filename). Results DS=62 file does not exist; DS=63 file exists.
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