Basic computer language commands

Basic computer programming language

VAL Function

Purpose:

Returns the numerical value of string x$.

Syntax:

VAL(x$)

Comments:

The VAL function also strips leading blanks, tabs, and line feeds from the argument string. For example, the following line returns -3:

VAL(" -3") 

The STR$ function (for numeric to string conversion) is the complement to the VAL(x$) function.

If the first character of x$ is not numeric, the VAL(x$) will return zero.

Examples:

10 READ NAME$, CITY$, STATE$, ZIP$
20 IF VAL(ZIP$)<90000 OR VAL(ZIP$)>96699 THEN PRINT NAME$ TAB(25) "OUT OF STATE"
30 IF VAL(ZIP$)>=90801 AND VAL(ZIP$)<=90815 THEN PRINT NAME$ TAB(25) "LONG BEACH"
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