Basic computer language commands

Basic computer programming language

MID$ Function

Purpose:

To return a string of m characters from x$ beginning with the nth character.

Syntax:

MID$(x$,n[,m])

Comments:

n must be within the range of 1 to 255.

m must be within the range of 0 to 255.

If m is omitted, or if there are fewer than m characters to the right of n, all rightmost characters beginning with n are returned.

If n > LEN(x$), MID$ function returns a null string.

If m equals 0, the MID$ function returns a null string.

If either n or m is out of range, an "Illegal function call error" is returned.

For more information and examples, see the LEFT$ and RIGHT$ functions.

Examples:

10 A$="GOOD"
20 B$="MORNING EVENING AFTERNOON"
30 PRINT A$; MID$(B$, 8, 8)
RUN
 GOOD EVENING

Line 30 concatenates (joins) the A$ string to another string with a length of eight characters, beginning at position 8 within the B$ string.

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