TODO: Translate to q.

Loads should take no time.

Suppose you write a script a.k which involves an expensive initialization, say by means of a synchronous request for data from a server:

.A:(server;1234) 4:(retrieve;)
You mean to load a.k from within the application b.k, which looks like this:
\l a
\d .B
Show:"show $.A" Show..c:button \d ^ show$ B
but now b takes too long to come up.

So now you decide to improve things by having Show load the a script:

Show:".\"\\1 a"
This is wrong. Instead, modify the a script by moving the retrieval code into a function:
\d .a
retrieve:{(server;1234) 4:(retrieve;)}
and changing the definition of Show in b.k:
\l a
\d .B
Show:"show\$.[.A;();:;.a.retrieve[]]"
…