Hello list,

I'm starting for a couple of days with smalltalk/squeak - maybe it's not my

last post :)

I like to construct a flat array, but get a nested array:

#(1 2 (1 + 3)) "unexpected result: #(1 2 #(1 #+ 3)) "

Why squeak means, that "(1 + 3)" is an array and not 4?

The syntax for an array literal is defined via"#(" - isn't it?

salute

Thomas

Is because the #(..) array is a literal build at compile time.

If you want a flat array use the {} syntax.

But this is specific to Squeak. You will not find it in VW for example.

Rather prefer the Array class>>#with:with:with:

The #() syntax is for a regular array but for a literal array you want {}

(curly braces)

Try this: {1. 2. 1 + 3.}

Hope that helps,

Ron Teitelbaum

Ah, thanks a lot, but this provokes my next question:

How can I use floats like 3.14 in an array literal?

{3.14 2.} "{3.14 Period or right brace expected ->2.}"

PS: Is there anywhere in the net a *COMPLETE AND COMPACT* list

of all "cryptical" syntax characteristics for smalltalk/squeak?

salute

Thomas

try this:

{3.14. 2}

Math

Thanks!

I recapitulate:

In {} Array literals I have to use a period sign between all items.

In #(..) array literal which build at compile time, I can never use

expressions.

Right?

salute

Thomas

Mathieu,

No,

would with arrays). Expressions do not require a period.

and just as well { (Stream on: ( String new:1204)). 'or whatever you can get away with...' .} (notice the periods

inside the literal string)

Olivier

Hahah! That's pretty funny. I hadn't thought about {3.14 2.} but I went

and tried it and guess what, it worked! My guess is the space is

importation.

I know that there are a number of tutorials,

http://wiki.squeak.org/squeak/792 if you find something good feel free to

let us know.

Ron Teitelbaum