Available on: all targets

FOR...NEXT

This instruction implements a loop with explicit number of times to repeat. Each FOR statement must be matched by a single NEXT, and pairs of FOR...NEXT loops can be nested inside one another. Each loop repeats a list of instructions for a specific number of times, governed by an index which counts the number of times the loop is repeated. Once inside the loop, this index can be read by the program as if it is a normal variable.

Normally, the index counter is increased by 1 unit at every turn of a FOR...NEXT loop. When the current value exceeds that of the last number specified, the loop is terminated. STEP is used to change the size of increase in the index value.

syntax example abbreviation back to keywords

SYNTAX

 FOR var = start TO end [ STEP increment ]
    ...
 NEXT


Legend
  • id : identifier
  • type : datatype
  • v : value
  • "..." : string
  • [...] : optional

EXAMPLE

 i = 0
 FOR i = 1 to 100 STEP 2
    PRINT i
 NEXT


Used in:

ABBREVIATION: Fo...Nx

Join BASIC 10Liner Contest with ugBASIC!

An interesting competition is held at the beginning of each year: the BASIC 10Liner Contest. It is possible to use ugBASIC to participate in the next "BASIC10Liner" competition, in the following categories:

  • PUR-120 - A game in 10 lines of max 120 characters (w/abbrev.)
  • EXTREME-256 - A game in 10 lines of max 256 characters (w/abbrev.)
  • SCHAU - Any program in 10 lines of max 256 characters (w/abbrev.)
In order to reduce space you can use this abbreviation for this instruction: 

FOR...NEXT ↔ Fo...Nx

Any problem?

If you have found a problem with this keyword, if you think there is a bug or, more simply, you would like it to be improved, open an issue for this example on GitHub.
Thank you!

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