BASIC-DOS

BASIC-DOS BASIC Commands

LET

The LET statement assigns the value of expression to variable:

[LET] variable=expression

Values cannot be assigned to predefined variables (eg, ERRORLEVEL and MAXINT).

As in IBM PC BASIC, the LET keyword is optional (eg, A = 1), in BAS and BAT files and at the prompt. At the prompt, a name followed by = (or by a subscript and =, eg, A(1) = 2) is an assignment, rather than the name of a program to run.

If the expression and variable are different numeric types, the value is converted to the variable’s type; floating-point values assigned to integer variables are rounded (eg, LET A% = 2.5 sets A% to 3).

Example:

LET A$ = "HELLO":LET N = LEN(A$) * 2
PRINT A$; N
HELLO 10

« IFRETURN »