EVAL$(code$) and EVAL(code$)

[davidk64]

These are discussed in the HTML help topic "Numbers and Strings" under Mathematics section.

Here's the explanation code:

 'Let's evaluate some code that produces a non-numeric result

 a$(0) = "zero"

 a$(1) = "one"

 a$(2) = "two"

 code$ = "a$(int("+str$(rnd(1))+"*3))"

 print "We will evaluate the code: "; code$

 result$ = eval$(code$)

 print result$

 'Now let's use the eval function, which effectively does a

 'val() to the result of the calculation. Converting a non

 'numeric string to a numeric value results in zero.

 result = eval(code$)

 print result




When I run it I get "BASIC Compile Halted: Type Mismatch. Array eval$() requires numeric parameters."

Is that what is supposed to happen?

Also are they "supposed" to be in the command reference "D-F" section?

[plus]

JB is thinking eval$() is an array since you are showing an eval$() function, same problem will occur with eval() no $ sign. Do you have code for eval() or eval$() functions?

WT??


code$ = "a$(int("+str$(rnd(1))+"*3))"

[plus]

This it?
 
 a$(0) = "zero"
 a$(1) = "one"
 a$(2) = "two"
 code$ = "a$(" +str$(int(rnd(1)*3)) +  ")"
 print "We will evaluate the code: "; code$
 print a$( val( mid$(code$, 4)) )



[plus]

Oh I see! This may be in Liberty Basic but it sure ain't in Just Basic!

One way you can tell is when typed into the IDE eval should change color if it were an official keyword, it doesn't therefore it's not.

[davidk64]

Ah! Yes I see it is black like a$. Thanks for that +