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Update 4-14_read-write-clojure-data-structures.asciidoc #500

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Update 4-14_read-write-clojure-data-structures.asciidoc #500

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4 changes: 4 additions & 0 deletions 04_local-io/4-14_read-write-clojure-data-structures.asciidoc
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Expand Up @@ -16,6 +16,10 @@ Use +pr-str+ and +spit+ to serialize small amounts of data:
(spit "data.clj" (pr-str [:a :b :c]))
----

TIP: Wrap it with `+(binding [*print-length* nil, *print-level* nil] ...)+` to prevent eliding the data, especially when running from the REPL.

NOTE: `pr-str` is more reliable than `str` for round-tripping data, especially if they use custom tagged literals or overide .toString (as java.util.HashMap does).

Use +read-string+ and +slurp+ to read small amounts of data:

[source,clojure]
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