topic Re: If statements in JSL in Discussions

If statements in JSL

Sun, 11 Jun 2023 12:04:09 GMT

Is it possible to execute multiple statements from one if condition - like an if/then/do statement in SAS? How can it be done?

Re: If statements in JSL

Anonymous — Wed, 04 Jan 2017 14:54:02 GMT

You bet. It's odd in JSL, but semicolons are subordinate to commas. So you can have statements in an if statement separated by semicolons.

If(,<statements separated by semicolons>).

Re: If statements in JSL

Thu, 01 Jul 2010 22:41:41 GMT

JSL gives the appearance of a regular language with statements terminated by a semicolon. It is however, very much a function driven language, where you make function calls with lists of arguments separated by commas. Standard programming constructions such as loops and if statements are implemented as functions. The IF function can take multiple arguments, which act in condition expression-pairs:

If ( condition1, expression1, condition2, expression2, ..., final-expression )

Thus giving the structure of an if--elseif-else statement.

Each expression can consist of multiple lines of code delineated with a semicolon.

In fact, the semicolon is just an operator that implements the Glue function. Glue takes a list of JSL expressions separated by commas,

so for example:

a=1;
b=2;
c=a+b;

is just short-hand for

Glue(a=1,b=2,c=a+b)

All the JSL functions are listed with descriptions in the JSL Functions Index under Help>Indexes

Re: If statements in JSL

pmroz — Wed, 04 Jan 2017 14:56:03 GMT

The IF statement in JSL takes a little getting used to. For readability I use comments that mark the "THEN" and "ELSE" sections.

Regards,

Peter

Re: If statements in JSL

Anonymous — Fri, 02 Jul 2010 15:29:21 GMT

These boards take HTML?????

Wahoo!!!

Re: If statements in JSL

pmroz — Fri, 02 Jul 2010 17:49:07 GMT

I put a very brief description of how to post formatted code in this posting:

http://support.sas.com/forums/message.jspa?messageID=38882#38882

Regards,
Peter

Re: If statements in JSL

Anonymous — Fri, 02 Jul 2010 17:55:33 GMT

Wow, that's awesome, thanks! (sorry for hijacking this thread).

Re: If statements in JSL

Badri — Fri, 03 Feb 2017 20:12:01 GMT

All actions need to be separated by semicolon and then grouped using parenthesis.

The following example worked.

A=1;

if(A==1, (x=A*1; y=A*2;z=A*3), (x=A^1; y=A^2;z=A^3));

Print(x); Print(y); Print(z);

/*:

//:*/

A=2;

if(A==1, (x=A*1; y=A*2;z=A*3), (x=A^1; y=A^2;z=A^3));

Print(x); Print(y); Print(z);

/*: